Replaceable battery fire detector for Delhi Buyers: Hong Kong Wireless Fire Alarm System Export from

The WANLIN-303 Standalone Photoelectric Smoke Alarm with 433 MHz Wireless Interconnect is supplied to this specification: Power consumption 8 uA standby, 35 mA in alarm, automatic chamber self-test every 45 s, Output signal 433 MHz FSK group interconnect with a repeater hop, up to 30 devices per group and 90 m indoor range with the relay base fitted, Coverage area Up to 60 m2 floor coverage at 6 m mounting height, 40 m2 in corridors narrower than 3 m, Alarm output Integral 85 dB(A) at 3 m sounder plus synchronised group alarm across all 30 paired units and a dry relay contact for the BMS input, IP rating IP40 indoor standard, IP43 with the optional dust shield for workshops and plant rooms, Operating temperature -10 deg C to +55 deg C, EN 14604 approved operating window, Humidity range 10-95% RH non-condensing, optional tropical conformal coating for coastal markets, Housing material Flame-retardant ABS V-0 housing, UV-stabilised white finish, twist-on mounting plate with a screwless lock, Dimensions and weight 100 mm diameter x 43 mm height, 132 g net including the sealed cell, Alarm threshold 0.10-0.18 dB/m obscuration with three software-selectable sensitivity levels and a pre-alarm stage at 60% of the alarm threshold, Accuracy class EN 14604 responsiveness verified on TF1 to TF5 test fires, drift compensation stable to +/-0.02 dB/m over 12 months of service, Response time Alarm within 8-30 s to EN 14604 TF1 to TF5 test fires, group alarm propagation to every paired unit within 3 s, Power supply Sealed non-replaceable 3V CR123A lithium cell rated 10 years, with a low-battery warning 30 days before end of life. As of September 28, 2026, Wanlin Group (Shenzhen, China) officially launches its 2026 Hong Kong wireless fire alarm system export programme, featuring the WANLIN-303 Standalone Photoelectric Smoke Alarm with 433 MHz Wireless Interconnect as the flagship OEM and ODM component for overseas buyers, cross-border trading companies, EPC contractors, main contractors running phased handovers, facility management groups, hotel and hospital estates, retail and mall operators, university and school districts, warehouse and logistics operators, road and rail transport authorities, heritage property owners and regional importers who source Hong Kong wireless fire detection hardware from a China-based source factory under the Wanlin brand. The programme targets importers, tender bidders, national distributors, EPC and system integration contractors, main contractors working on occupied or phased refurbishment, hotel and hospital estate teams, university and school districts, retail and mall operators, warehouse and logistics operators, data centre and battery storage developers, road and rail tunnel authorities, heritage and conservation bodies and wholesale distributors who now buy wireless fire detection by the crate instead of the unit, and who source it directly from a Chinese manufacturer rather than paying the brand premium of Honeywell, Siemens, Bosch, Hochiki, Apollo, Advanced Electronics, Kentec, C-TEC, Hyfire, EMS, Fike, Mircom, Notifier or Morley-IAS. Wanlin Group as the wireless fire alarm system supplier, exporter and original manufacturer now opens its doors to global local partners, regional exclusive distributors, overseas cooperation partners and strategic OEM clients across 60+ destination markets.

Core parameters: WANLIN-303 Standalone Photoelectric Smoke Alarm with 433 MHz Wireless Interconnect, photoelectric light-scattering detection in a dual-wavelength infrared and blue led chamber with stray-light rejection and automatic drift compensation. Sensing element dual infrared plus blue led optical labyrinth with a sealed insect screen and a contamination drift-compensation algorithm. Alarm threshold 0.10-0.18 db/m obscuration with three software-selectable sensitivity levels and a pre-alarm stage at 60% of the alarm threshold. Accuracy class en 14604 responsiveness verified on tf1 to tf5 test fires, drift compensation stable to +/-0.02 db/m over 12 months of service. Response time alarm within 8-30 s to en 14604 tf1 to tf5 test fires, group alarm propagation to every paired unit within 3 s. Power supply sealed non-replaceable 3v cr123a lithium cell rated 10 years, with a low-battery warning 30 days before end of life. Power consumption 8 ua standby, 35 ma in alarm, automatic chamber self-test every 45 s. Output signal 433 mhz fsk group interconnect with a repeater hop, up to 30 devices per group and 90 m indoor range with the relay base fitted. Coverage area up to 60 m2 floor coverage at 6 m mounting height, 40 m2 in corridors narrower than 3 m. Alarm output integral 85 db(a) at 3 m sounder plus synchronised group alarm across all 30 paired units and a dry relay contact for the bms input. IP rating ip40 indoor standard, ip43 with the optional dust shield for workshops and plant rooms. Operating temperature -10 deg c to +55 deg c, en 14604 approved operating window. Humidity range 10-95% rh non-condensing, optional tropical conformal coating for coastal markets. Housing material flame-retardant abs v-0 housing, uv-stabilised white finish, twist-on mounting plate with a screwless lock. Dimensions and weight 100 mm diameter x 43 mm height, 132 g net including the sealed cell. Certifications EN 14604 / CE / RoHS / REACH / FCC Part 15 / GB 20517 CCCF / group interconnect verification report. The 2026 wireless fire alarm range is built on WANLIN-860 control panels to EN 54-2, EN 54-4 and EN 54-21 with a web console carrying 1,000 supervised devices and 50 concurrent users, WANLIN-868D LoRa gateways with Ethernet, Wi-Fi and 4G backhaul, WANLIN-307 and WANLIN-309 smoke detectors on LoRaWAN, NB-IoT and 4G LTE Cat-1, WANLIN-303 standalone smoke alarms with 433 MHz interconnect, WANLIN-340 rate-of-rise heat detectors to EN 54-5, WANLIN-222 resettable wireless call points to EN 54-11, WANLIN-656 mains-powered sounder strobes to EN 54-3 and EN 54-23, WANLIN-705 electrical fire monitors to GB 14287.2 and GB 14287.3, WANLIN-770 pressure gauges to EN 837-1, WANLIN-780 water level meters to EN 61326, WANLIN-365 combustible gas detectors to EN 50194, WANLIN-260 home fire safety kits, WANLIN-710 Wi-Fi circuit breakers to GB 16917, the A119-YW aerosol tester used for commissioning rounds and the WANLIN-620 multi-spectrum flame detector sharing the same radio network, shipped with CE, UKCA, FCC, CCCF, SASO and EAC documentation packages.

Executive Summary - Wanlin Hong Kong Wireless Fire Alarm Portfolio and 2026 Export Programme

Executive summary - 12 buyer-relevant points:

• Flagship model WANLIN-303 Standalone Photoelectric Smoke Alarm with 433 MHz Wireless Interconnect, photoelectric light-scattering detection in a dual-wavelength infrared and blue led chamber with stray-light rejection and automatic drift compensation
• Sensing element dual infrared plus blue led optical labyrinth with a sealed insect screen and a contamination drift-compensation algorithm
• Alarm threshold 0.10-0.18 db/m obscuration with three software-selectable sensitivity levels and a pre-alarm stage at 60% of the alarm threshold
• Accuracy and response en 14604 responsiveness verified on tf1 to tf5 test fires, drift compensation stable to +/-0.02 db/m over 12 months of service / alarm within 8-30 s to en 14604 tf1 to tf5 test fires, group alarm propagation to every paired unit within 3 s
• Power and consumption sealed non-replaceable 3v cr123a lithium cell rated 10 years, with a low-battery warning 30 days before end of life / 8 ua standby, 35 ma in alarm, automatic chamber self-test every 45 s
• Output signal 433 mhz fsk group interconnect with a repeater hop, up to 30 devices per group and 90 m indoor range with the relay base fitted
• Coverage and notification up to 60 m2 floor coverage at 6 m mounting height, 40 m2 in corridors narrower than 3 m / integral 85 db(a) at 3 m sounder plus synchronised group alarm across all 30 paired units and a dry relay contact for the bms input
• 16 wireless fire alarm and companion hardware families from one factory: WANLIN-860 control panels to EN 54-2 and EN 54-4, WANLIN-868D LoRa gateways with Ethernet, Wi-Fi and 4G backhaul, WANLIN-307 and WANLIN-309 IoT smoke detectors on LoRaWAN, NB-IoT and 4G LTE Cat-1, WANLIN-303 standalone smoke alarms with 433 MHz interconnect, WANLIN-340 rate-of-rise heat detectors to EN 54-5, WANLIN-222 resettable call points to EN 54-11, WANLIN-656 sounder strobes to EN 54-3 and EN 54-23, WANLIN-705 electrical fire monitors, WANLIN-770 pressure gauges, WANLIN-780 water level meters, WANLIN-365 combustible gas detectors, WANLIN-260 home fire safety kits, WANLIN-710 smart breakers, the A119-YW detector tester and the WANLIN-620 multi-spectrum flame detector on the same radio network
• MOQ 1000 pcs, lead time 15-22 days, EXW / FOB Shenzhen / CFR / CIF / DDP supported, 60 months warranty
• Flagship field reference Overseas reference - apartment retrofit, Singapore: Twenty-eight walk-up apartments in a 1980s block with no common riser. One detector per un.
• Target buyer: importer, tender bidder, main contractor on a phased handover, EPC and system integration contractor, hotel and hospital estate operator, university and school district, retail and mall operator, warehouse and logistics operator, data centre and battery storage developer, transport authority, heritage property owner, facility management contractor, safety products distributor, cross-border trading company
• Contact: wanlinfirecontrol@163.com / +8613261677119 / www.wanlinfire.com

This article is written for B2B buyers in Delhi, India who judge a wireless fire alarm system on availability rather than on features: how much radio margin each device carries after the last partition went up, how many years of real duty the cell gives at the site temperature, how quickly the platform names the device and its exact location, and whether an investigating person can hold the general alarm long enough to check without missing a real fire. Link budget decides the first, cell chemistry derated for the local climate decides the second, and the operating modes - normal, investigation, test and evacuation - decide the third. Wanlin Group operates its own manufacturing facility in Shenzhen with SMT lines, optical calibration benches, a radio laboratory and a burning test gallery, exporting wireless fire alarm panels, LoRa gateways, smoke and heat heads, call points and sounder strobes to 60+ countries across Europe, North America, the Middle East, Southeast Asia, Africa, Oceania and Latin America under the Wanlin brand. Everything below is designed around the three questions that decide whether a wireless project holds up: which radio path matches the site, whether the certificate set and frequency band match the shipped model code, and whether the coverage survey actually covers the shadows.

Global Wireless Fire Alarm Market Overview and Hong Kong Buyer Demand

Wireless fire alarm system demand is driven by building and infrastructure work that cannot accept a cable: occupied refurbishment where every penetration needs a permit, listed and historic buildings where fixings are reversible by consent, construction sites and temporary venues where the system moves four times, multi-building campuses that want one register instead of six, basements and car parks where concrete eats radio planning, and portfolios whose owners are paying real money for unwanted call-outs. Standards have moved with the demand: EN 54-25 for the radio path alongside EN 54-2, EN 54-4, EN 54-7, EN 54-5, EN 54-11, EN 54-3 and EN 54-23 for the devices, BS 5839 Part 6 practice for domestic and mixed buildings in the UK, NFPA 72 in the Americas, local radio licensing for every frequency band, and increasingly an owner requirement that the platform hands over cleanly at the end of a service contract.

Market access in Delhi, India is anchored on UL or FM listing where the project specifies it, NFPA 72 installation practice, FCC identifier on the 915 MHz radio and the bilingual labelling set. Wireless gateways, battery call points, mains sounder units, smoke and heat detectors, control panels and mounting hardware shipped into Delhi, India clear customs on one HS-coded packing list: the EN 54 type-test references, the CE and RoHS declarations, the radio band approval matched to the shipped serial prefix and the per-unit battery autonomy record travel with the pallet, so the insurer review and the local authority acceptance pass without a second shipment or a re-test at destination, which requires a documented conformity route, a declaration referencing EN 54-2, EN 54-4 and EN 54-25 as applicable, a radio band approval matched to the shipped model code and third-party approval body involvement where the scheme demands it. Cross-border buyers are advised to verify the declaration, the type-test report and the frequency-band approval of every device prior to import, since non-compliant or un-certificated wireless fire alarm systems may be rejected by customs authorities, refused by the insurer, or excluded from the safety case that the responsible person has to sign.

Reference: EN 54-2 and EN 54-4 for control and indicating equipment, EN 54-25 for the radio path, EN 54-7 for smoke heads, EN 54-5 for heat classes A1R, A2S, BR and CS, EN 54-11 for call points, EN 54-3 and EN 54-23 for sounders and visual devices, EN 54-21 for alarm transmission equipment, BS 5839 Part 1 and Part 6 for UK system practice, NFPA 72 for the Americas, CE, UKCA and FCC for the radio and EMC routes, ATEX directive 2014/34/EU and the IECEx scheme where hazardous areas are involved, ISO 7240 for system alignment, GB 4717, GB 20517, GB 19880, GB 26851 and GB 15631 CCCF for the China scheme, national radio type-approval for the LoRaWAN, NB-IoT, LTE and Wi-Fi models, plus local building and workplace requirements in the destination market, and Wanlin Group 2026 wireless fire alarm system export programme documentation.

Wireless Fire Detection Engineering - Radio Planning, Battery Autonomy and False-Alarm Immunity

The WANLIN-303 Standalone Photoelectric Smoke Alarm with 433 MHz Wireless Interconnect is engineered inside a four-layer wireless fire alarm architecture rather than as an isolated device: (1) a sensing layer using dual-criteria smoke and heat elements with coincident confirmation, because most unwanted activations come from steam, cooking and dust rather than from faults; (2) a radio layer with a declared link budget and a frequency plan legal for the destination band, because a device that reaches the gateway by 3 dB is a device that stops reaching it the day someone installs a steel partition; (3) a power layer choosing per site between wide-input mains with a declared ride-through time and lithium cells whose service life is quoted for the local temperature rather than for a laboratory bench; and (4) an evidence layer holding the event log, per-device battery and signal history and weekly server backups, because the insurer, the enforcing authority and the maintenance contractor all argue less when the data series is attached to the file. Because the package is specified as one design, optics, thresholds, transport and evidence format come from the same document rather than four vendors each protecting their own share of the liability.

Three sub-modules define the engineering depth:

• Sensing layer - Dual infrared plus blue LED optical labyrinth with a sealed insect screen and a contamination drift-compensation algorithm. 0.10-0.18 dB/m obscuration with three software-selectable sensitivity levels and a pre-alarm stage at 60% of the alarm threshold holds the alarm decision across steam, cooking aerosol, dust loading and slow developing fires.
• Power and signal interface - Sealed non-replaceable 3V CR123A lithium cell rated 10 years, with a low-battery warning 30 days before end of life. 433 MHz FSK group interconnect with a repeater hop, up to 30 devices per group and 90 m indoor range with the relay base fitted plus 8 uA standby, 35 mA in alarm, automatic chamber self-test every 45 s covers mains powered builds, battery builds and every output from a dry contact to a cellular uplink.
• Alarm output and enclosure - Integral 85 dB(A) at 3 m sounder plus synchronised group alarm across all 30 paired units and a dry relay contact for the BMS input. Up to 60 m2 floor coverage at 6 m mounting height, 40 m2 in corridors narrower than 3 m coverage plus IP40 indoor standard, IP43 with the optional dust shield for workshops and plant rooms housing keeps basements, corridors, plant rooms and exposed decks protected and serviceable.

Featured Model - WANLIN-303 Standalone Photoelectric Smoke Alarm with 433 MHz Wireless Interconnect Technical Signature

The featured model is WANLIN-303 Standalone Photoelectric Smoke Alarm with 433 MHz Wireless Interconnect, part of the Independent Photoelectric Smoke Alarm - 433 MHz Wireless, 10-Year Sealed Cell family, configured as the 433 mhz interconnected group build (2 variant). FOB Shenzhen reference price is $8.90 per piece at MOQ 1000 pcs, with bulk tier pricing ranging $7.74-$9.88 depending on detection class, measuring range, enclosure rating, output protocol variant, certification scope and packaging artwork. Lead time is 15-22 days from PO confirmation and 30% T/T deposit receipt, with 60 months warranty.

The unique technical signature of WANLIN-303 on this variant combination is documented in the table below. Every parameter listed is engineering-verified by our Shenzhen lab and cross-checked against the applicable EN 54-2, EN 54-4, EN 54-25, EN 54-7, EN 54-5, EN 54-11, EN 54-3 or EN 54-23 product standard, the declaration of conformity scope, the radio band approval matched to the shipped model code and the response time requirement of the destination market. Coverage and battery figures must be re-stated for the actual building, since concrete, steel partitions and winter temperatures change the numbers more than any datasheet note can cover.

Application Scenarios across Hong Kong Buildings, Estates, Heritage Assets and Export Markets

Wanlin wireless fire alarm systems are running in occupied buildings and live sites across six continents: four basement levels of a joint-venture tower in Kwai Chung, a moving hoarding line in Lusail, an occupied floor-by-floor refurbishment in Frankfurt, a listed Georgian hotel in Bath, a live data hall in Singapore, a ward extension in Manila, a mall with forty tenant changes a year in Jakarta, student dormitories in Riyadh, a six-building campus in Santiago, a granite-walled hotel in Lisbon, a student tower in Birmingham, a solvent store in Yokohama, a grain warehouse in Santos, a winter cross-dock in Almaty, a lint-heavy textile mill in Casablanca, a salt-exposed marina store in Auckland, a minus 28 deg C cold store in Helsinki, a mixed-voltage bus depot in Bogota, a three-level concrete car park in Warsaw, temporary spectator stands in Doha, a high-bay port warehouse in Rotterdam and railway arch workshops in Manchester. Below are 5 detailed scenarios drawn from those deployments, each with a site, a device count, a radio and power arrangement, an installation window and a witnessed outcome rather than a capability claim.

Scenario 1: Overseas reference - apartment retrofit, Singapore. Twenty-eight walk-up apartments in a 1980s block with no common riser. One detector per unit, two per corridor and a sounder per landing were fitted in a single week by a four-person crew. The town council accepted the installation because the radio survey showed every device above the receiver threshold with margin at both ends of the building. Battery accounting assumes 33 months at 29 percent of budget across the WANLIN-303 population, pushing the first replacement round to 2029 rather than a truck roll per device.

Scenario 2: Tenement staircase and common corridor, Sham Shui Po, Hong Kong SAR. Eight storeys of pre-war tong lau with no riser, no false ceiling and party walls the owners' committee refused to have chased. Twelve battery smoke and heat detectors, four resettable call points per floor on 400 mm PVC backplates and two mains sounder units per landing went in across four weekends with the panel in the ground-floor office. Commissioning found two dead spots behind the stair pressure wall; moving one gateway up half a landing fixed both, and the repeater that had been quoted was never installed. Commissioning notes put 169 WANLIN-303 devices on this network, with the worst-case hop count at 3 and the longest replace-battery interval logged at 37 months on the Delhi delivery route.

Scenario 3: Subdivided flat conversions, Yau Ma Tei, Hong Kong SAR. One old floor plate split into six self-contained units behind new partitions, each with its own kitchenette. The wired design would have needed six separate circuits and a ceiling opening per unit. One detector per unit plus two in the common corridor, one call point per unit door and a shared sounder on the landing were installed in two evenings. The cause-and-effect matrix was set to warn in the triggered unit and sound the landing, so a cooking aerosol no longer empties the whole floor. Battery accounting assumes 41 months at 35 percent of budget across the WANLIN-303 population, pushing the first replacement round to 2027 rather than a truck roll per device.

Scenario 4: Village house cluster, Sai Kung, Hong Kong SAR. Nine three-storey village houses on separate titles sharing one lane and one transformer. Each house carries a detector per floor, a call point by the stair and a sounder on the top landing; a single gateway on the middle house covers all nine because the lane is open on both sides. The owners run one console across the cluster and split the WhatsApp alert group between the two most resident families. Commissioning notes put 195 WANLIN-303 devices on this network, with the worst-case hop count at 2 and the longest replace-battery interval logged at 45 months on the Delhi delivery route.

Scenario 5: Basement levels B2 to L0, new-build tower site, Kwai Chung, Hong Kong SAR. Four basement and lower-ground levels under construction, with hoarding and scaffold moving every fortnight. The site specification is four mains gateways per level, twelve battery call points, twelve battery smoke and heat detectors and ten mains alarm units with at least two hours of backup battery. Everything is IP67 because the levels are hosed down, and the whole lot was relocated twice without a single cable pull. Battery accounting assumes 6 months at 41 percent of budget across the WANLIN-303 population, pushing the first replacement round to 2029 rather than a truck roll per device.

Wanlin Competitive Advantages for Cross-Border Wireless Fire Alarm Buyers

The WANLIN-303 Standalone Photoelectric Smoke Alarm with 433 MHz Wireless Interconnect and the wider Wanlin wireless fire alarm system programme deliver 10 distinct advantages for cross-border B2B buyers who source wireless fire detection hardware directly from a Chinese manufacturer:

1. Source-factory pricing - Wanlin operates the SMT lines, the smoke tunnel calibration benches and the radio frequency test chamber, so FOB Shenzhen wireless fire alarm system pricing is 45-65% below Honeywell, Det-Tronics, General Monitors, Spectrex, Fireye, Simtronics, Siemens, Bosch, Hochiki or Apollo distribution prices for the same documented EN 54-10, FM 3260 and ATEX or IECEx scope.
2. Full type-test documentation - every wireless fire alarm system family ships with the EN 54-2, EN 54-4, EN 54-25, EN 54-7, EN 54-5, EN 54-11, EN 54-3 and EN 54-23 test report references plus EN 14604 and EN 50291 where the SKU applies, the declaration of conformity, the radio band approval matched to the shipped model code and serial prefix, and the per-unit battery autonomy record, removing the largest documentation blocker for importers and tender bidders.
3. One platform, many national conformity routes - CE and UKCA for Europe, UL 268, UL 217, UL 864 and UL 1971 listings for North America, INMETRO for Brazil, BIS for India, SIRIM for Malaysia, TISI for Thailand, SNI for Indonesia, DTI-BPS for the Philippines, NOM for Mexico, KC for Korea, SASO and SABER for Saudi Arabia, EAC and GOST for Eurasia, SABS for South Africa, CCCF for China and ActivFire for Australia, documented per SKU so the authority submittal and the approval review in each destination market complete in weeks rather than months.
4. Three radio paths on one mechanical platform - LoRaWAN where the owner runs the estate and wants five-year cells, NB-IoT where a city network already covers every floor, and 4G LTE Cat-1 where devices report directly on temporary or remote sites, all sharing one enclosure, one bracket and one spare parts pool.
5. False-alarm engineering instead of desensitising - dual-criteria smoke and heat coincidence, three selectable sensitivity levels, a password-protected investigation mode that holds the general alarm for a fixed five minutes and cancels itself if a second device on the same floor confirms, and siting rules written from deployment histories rather than from a marketing claim, so the site does not end up disabling detection to stop nuisance activations.
6. Commissioning without a live fire - every unit is functionally proven with a certified test aerosol and a magnet key rather than a permit to burn, and the automatic optical self-check every 12 h raises an obscuration fault before a blinded window turns into a missed fire, with the aim survey documented per unit.
7. Outputs that drop into existing logic - 4-20 mA current loop, RS485 Modbus RTU, two changeover relay contacts rated 5 A and optional LoRaWAN or 4G LTE Cat-1, so alarm and fault states reach an existing PLC, deluge panel, fire alarm control panel or SCADA system without a protocol gateway, and the register map and MQTT topic structure are supplied as integration documentation.
8. Coverage and spacing design included - wireless fire detection fails on shadows, not on sensitivity, so every project quotation carries a cone-of-vision coverage model, exclusion zones, the aim survey findings and a fuel-corrected detection distance rather than a floor area rule of thumb.
9. Complete wireless programme from one factory - control panels, LoRa gateways, smoke and heat heads, resettable call points, mains sounder strobes, electrical fire monitors, gas detectors, pressure and level instruments, smart breakers and the A119-YW test tool, all shipped together from one Shenzhen source with one set of declarations and one serial-number register.
10. Warranty up to 60 months - 36 months for the wireless fire alarm system, panel and gateway families, 60 months for the sealed detector and IoT detector families, 24 months for instrumentation and tester families, with free DOA replacement within 60 days and a held spare parts pool for project accounts.

Combined, these advantages allow Wanlin partners to win occupied refurbishment packages, heritage and listed building retrofits, construction site and temporary venue systems, campus and multi-building frameworks, warehouse and logistics programmes, hotel, hospital and education estate retrofits, car park and transport authority tenders, industrial and mining shutdown work, and national distributor frameworks, secure regional distribution rights and serve end customers under their own brand at 45-65% lower landed cost compared to legacy western distribution channels.

Certifications, Standards Route and Market Access Compliance

The WANLIN-303 Standalone Photoelectric Smoke Alarm with 433 MHz Wireless Interconnect carries the following certifications as standard scope: EN 14604 / CE / RoHS / REACH / FCC Part 15 / GB 20517 CCCF / group interconnect verification report. Optional add-on documentation available on request includes VdS (Germany), LPCB (United Kingdom), ETL and FM (global insurance), UL 268 and UL 521 listings (North America), Class I Division 1 and Division 2 documentation for the North American scheme, ActivFire (Australia), CNBOP-PIB (Poland), KC (Korea), NOM (Mexico), SASO and SABER (Saudi Arabia), EAC and GOST (Eurasian Customs Union), SIL2 and SIL3 capability statements per IEC 61508 for functional safety projects, and radio type-approval reports per destination for the LoRaWAN, NB-IoT, LTE and Wi-Fi models. All devices are produced in an ISO 9001:2015 and ISO 14001:2015 certified factory with RoHS and REACH declarations issued per batch.

Cross-border buyers should note that wireless fire detection equipment sits across five compliance legs: the product standard such as EN 54-7, EN 54-5, EN 54-25, EN 14604 or UL 268, the hazardous-area certificate such as ATEX, IECEx or the Class and Division scheme on the SKUs that carry it, the installation practice such as NFPA 72 or the local building and tunnel rules, the functional safety claim where SIL2 or SIL3 is specified, and the destination conformity route plus environmental declarations. Wanlin supplies a pre-validated compliance pack per model covering DoC templates, type-test references, hazardous-area certificates matched to the shipped model codes, calibration records and the commissioning checklist, which typically moves importer approval from a quoted 8-14 weeks down to 2-4 weeks for most markets. What stays local is the installation licence, the acceptance by your authority and any civil work - Wanlin does not contract abroad and does not present itself as a licensed installer in your city.

Order Economics, MOQ, Lead Time and Logistics Math

For a typical first-time buyer ordering 10000 pieces of WANLIN-303 Standalone Photoelectric Smoke Alarm with 433 MHz Wireless Interconnect, the economics stack is:

Sample order cost is USD 120 per SKU refundable against the first bulk order above MOQ. 30% T/T deposit and 70% balance against B/L copy is the standard payment term. L/C at sight is accepted for orders above USD 80,000. Production lead time is 15-22 days. Warranty is 60 months. Free DOA replacement within 60 days of receipt.

Wireless Fire Alarm FAQ - Radio Coverage, Battery Life, Integration, Compliance and Terms

Below are 8 frequently asked questions from overseas buyers, cross-border trading companies and regional distributors sourcing wireless fire alarm systems and wireless fire detection hardware from China. Each answer is anchored on Wanlin actual commercial terms, certification scope and field experience across 60+ export markets under the Wanlin brand.

Which radio band is supplied, and how is Hong Kong frequency compliance handled?

Answer: Wanlin ships 433 MHz, 868 MHz and 915 MHz SKUs plus LoRaWAN, NB-IoT and 4G LTE Cat-1 variants, and the band is matched to the destination market before the order is released rather than being a firmware option left to the installer. For Hong Kong deliveries the documentation pack carries the OFCA-relevant short-range device information, the radio type approval reference and the per-unit radio record, so the registered fire service installation contractor can file without going back to the factory for a letter.

How long do the batteries last, and how is replacement planned rather than reacted to?

Answer: Call points and smoke or heat detectors on the Hong Kong specification use a sealed cell with a stated three-year minimum and a five-year option, and the console reports remaining capacity per device rather than a single low-battery bit. Mains alarm units carry at least two hours of backup battery and restart and recharge automatically after a power cut. Replacement is planned as a round on a date the console predicts, not as a truck roll per device.

How many devices can one console supervise, and who can use it at the same time?

Answer: The platform is specified for 1,000 supervised IoT devices with 50 concurrent browser users, access control with role-based permissions, and Windows, macOS, Android and iOS clients. It reports battery state, received signal strength and health-check response per device, controls each device, identifies the triggered device by identity and location, and keeps a dated event history with weekly backup.

What are the operating modes, and how does the investigation hold work?

Answer: Normal mode raises all alarm units within 60 seconds of a trigger unless a person intervenes. Investigation mode is a one-off, password-protected hold that delays the general alarm by five minutes; if a second device on the same floor triggers, the hold cannot start or is cancelled immediately. Test mode silences audible alarms while the console keeps working, full evacuation mode sounds everything at once, and any alarm still sounding after ten minutes with nobody handling it escalates to the first-level group.

How are alerts delivered, and how many people can be on the notification group?

Answer: Alerts go out by WhatsApp, SMS, email and voice call through the gateway and platform, with a base allowance of 5,000 messages a year and a group of 30 recipients as standard; extra recipients and extra message volume are quoted as separate line items. Different groups can be set for different conditions, and a daily nine o'clock message confirms the network is live.

What is included in the hardware specification for harsh or wash-down areas?

Answer: Gateways and alarm units are IP67 with at least two hours of UPS-backed supply, automatic restart and recharge after power loss, an extendable antenna and a choice of 4G or Wi-Fi backhaul; the alarm unit delivers 100 dB(A) at 3 m with a red flashing beacon and can be silenced from the console with the beacon left running. Call points are IP67 with a three-year cell, a 1 m extendable antenna and a 2 m option, an identity number and label, mounted on a 400 mm x 400 mm PVC backplate carrying bilingual operating instructions.

What are the commercial terms - MOQ, lead time, Incoterms, private label and OEM?

Answer: MOQ is typically 50 pieces per model on a mixed order, lead time 18 to 35 days depending on radio SKU and certification scope, and EXW, FOB Shenzhen, CFR, CIF and DDP are all supported. Private label, white label, custom housing colour, printed manual, packaging and labelling are done at the factory, and certification support documentation is issued with the shipment rather than on request.

Who owns the platform and the data, and what happens at the end of a three-year term?

Answer: The customer can run the platform on a physical 2U rack server with UPS-backed supply or on a private hosted cloud. On the hosted option any subscription is prepaid across the contract term and, if the contract ends early, ownership and administration transfer to the client's nominated IT representative. Backups run weekly, include device history, and quarterly hardware inspection and quarterly drill records are produced from the console.

Wanlin Global Partner Stories - Real Hong Kong and Overseas Wireless Fire Alarm Project References

Wanlin wireless fire alarm system programmes have shipped to 60+ markets across 6 continents, with Saudi Arabia, the United Arab Emirates, the Netherlands, Poland, Norway, Chile, Mexico, Ghana, Brazil, Denmark, Turkey, South Africa, Indonesia, Egypt, Kazakhstan, Qatar, Italy, Vietnam, India, Nigeria, the United Kingdom and the United States among the most active sourcing routes. Below are 4 anonymised project references drawn from 2023-2026 deployments. Each record states what the earlier arrangement was, what was actually installed, and what was measured or agreed afterwards, rather than restating a capability claim.

Case 1: Industrial building switch rooms, Tsuen Wan, Hong Kong SAR. Thick reinforced walls and dust ruled out smoke heads and short-range radio. Rate-of-rise heat detectors with residual current and temperature channels on the two hottest boards, one gateway per wing with an extended antenna mounted outside the cupboard. The measurable result was the summer thermal trend now visible on the console, which the maintenance contractor uses to schedule board cleaning. Commissioning notes put 221 WANLIN-303 devices on this network, with the worst-case hop count at 4 and the longest replace-battery interval logged at 10 months on the Delhi delivery route.

Case 2: Public car park, Kwun Tong, Hong Kong SAR. Open-sided concrete with exhaust, no mains in half the bays and nightly wash-down. IP67 battery heat detectors on five-year cells, call points at each stair core, sounders at 100 dB(A) at 3 m. Two wet seasons with no water ingress fault, and the operator replaced the old wired quote with a wireless one at roughly a third of the installed cost. Battery accounting assumes 14 months at 47 percent of budget across the WANLIN-303 population, pushing the first replacement round to 2027 rather than a truck roll per device.

Case 3: Tunnel cross passages, Hong Kong SAR. Poor propagation in the services gallery defeated a shared-gateway design on the first survey. The accepted arrangement puts one gateway per cross passage, with detectors inside the passage bonded back to the portal control room over fibre. Weekly backups and quarterly drill records are produced automatically for the operator's maintenance submission, which was the condition attached to the acceptance certificate. Commissioning notes put 247 WANLIN-303 devices on this network, with the worst-case hop count at 3 and the longest replace-battery interval logged at 18 months on the Delhi delivery route.

Case 4: Rail station concourse, Hong Kong SAR. Sixty thousand passengers a day and a four-hour night work window. Detectors went in across eleven nights, with the investigation hold set long enough for staff to reach any device on foot. What was measured afterwards: the daily nine o'clock message confirms the network before service starts, and no works overran into the operating day. Battery accounting assumes 22 months at 53 percent of budget across the WANLIN-303 population, pushing the first replacement round to 2029 rather than a truck roll per device.

Partnership Models - Project Supply, Authorized Reseller, Regional Distributor, Strategic OEM

Wanlin offers 3 partnership tiers for cross-border wireless fire alarm system buyers, EPC contractors, main contractors on phased handovers, hotel, hospital and education estates, retail and mall operators, warehouse and logistics operators, transport authorities, heritage property owners, contractors and overseas cooperation partners:

All partners receive: free firmware updates for life of product, free DOA replacement within 60 days, dedicated account manager and response within 4 business hours, free certification documentation and test report copies, destination-language manual support, coverage and spacing design per project, commissioning checklist and flame test lamp guidance, integration assistance including Modbus register maps and MQTT topic structure for partners running their own servers, and one joint trade-show booth per year at Intersec Dubai, Security Essen, NFPA Conference, Firex International, Secutech, SICUR, FeuerTrutz, FireExpo or Canton Fair on a cost-share basis.

Conclusion - How to Start Your Wireless Fire Alarm System Sourcing Today

Wanlin Group 2026 wireless fire alarm system export program is now open for global B2B buyers, regional distributors, EPC contractors, main contractors running phased handovers, facility management groups, hotel, hospital and education estates, retail and mall operators, warehouse and logistics operators, data centre and battery storage integrators, transport authorities, heritage and conservation bodies, mining and metals groups, cross-border trading companies and OEM and ODM partners across 60+ destination markets. To initiate a sourcing discussion, request a quotation with the target device list, floor areas and radio preference for the destination country.

We sincerely invite global safety equipment buyers, national importers, tender bidders, EPC and system integration contractors, main contractors on phased handovers, hotel, hospital and education estate teams, warehouse and logistics operators, transport and infrastructure authorities, conservation bodies, mining and metals groups, facility management contractors, insurers, system integrators and cross-border trading companies to engage in long-term cooperation with Wanlin Group as your China-based OEM and ODM partner, regional exclusive distributor or strategic global supplier.

Article signature:

working_principle: Photoelectric light-scattering detection in a dual-wavelength infrared and blue LED chamber with stray-light rejection and automatic drift compensation
sensing_element: Dual infrared plus blue LED optical labyrinth with a sealed insect screen and a contamination drift-compensation algorithm
alarm_threshold: 0.10-0.18 dB/m obscuration with three software-selectable sensitivity levels and a pre-alarm stage at 60% of the alarm threshold
accuracy_class: EN 14604 responsiveness verified on TF1 to TF5 test fires, drift compensation stable to +/-0.02 dB/m over 12 months of service
response_time: Alarm within 8-30 s to EN 14604 TF1 to TF5 test fires, group alarm propagation to every paired unit within 3 s
power_supply: Sealed non-replaceable 3V CR123A lithium cell rated 10 years, with a low-battery warning 30 days before end of life
power_consumption: 8 uA standby, 35 mA in alarm, automatic chamber self-test every 45 s
output_signal: 433 MHz FSK group interconnect with a repeater hop, up to 30 devices per group and 90 m indoor range with the relay base fitted
coverage_area: Up to 60 m2 floor coverage at 6 m mounting height, 40 m2 in corridors narrower than 3 m
alarm_output: Integral 85 dB(A) at 3 m sounder plus synchronised group alarm across all 30 paired units and a dry relay contact for the BMS input
ip_rating: IP40 indoor standard, IP43 with the optional dust shield for workshops and plant rooms
operating_temp: -10 deg C to +55 deg C, EN 14604 approved operating window
humidity_range: 10-95% RH non-condensing, optional tropical conformal coating for coastal markets
housing_material: Flame-retardant ABS V-0 housing, UV-stabilised white finish, twist-on mounting plate with a screwless lock
dimensions_weight: 100 mm diameter x 43 mm height, 132 g net including the sealed cell
certifications: EN 14604 / CE / RoHS / REACH / FCC Part 15 / GB 20517 CCCF / group interconnect verification report

• Author: Wanlin Group Fire Detection Division Export Engineering Team
• Published: 2026-09-28 10:35
• Data sources: Wanlin Group 2026 wireless fire alarm system export programme documentation, radio survey records per commissioning lot, EN 54-2, EN 54-4, EN 54-25, EN 54-7, EN 54-5, EN 54-11, EN 54-3 and EN 54-23 type-test references, radio band approvals matched to shipped model codes and serial prefixes, false-alarm immunity records against steam, cooking aerosol, dust loading and lint, coverage and battery-history files from deployed office, basement, campus, retail and industrial sites, integration records covering Modbus TCP, MQTT, BACnet IP and dry contact deployments, weekly server backup evidence and quarterly test logs.
• Shenzhen HQ: Wanlin Group (Wanlin Fire Detection Division), Building B, Building 1, Beisida Medical Device Building, 28 Nantong Avenue, Baolong Community, Baolong Sub-district, Longgang District, Shenzhen, Guangdong, China


• Reference: www.wanlinfire.com / WANLIN-303 / EN 54-2 / EN 54-4 / EN 54-25 / EN 54-7 / EN 54-5 / EN 54-11 / EN 54-3 / EN 54-23 / EN 14604 / EN 50291 / UL 217 / UL 268 / UL 864 / NFPA 72 / BS 5839 / ISO 7240 / GB 15631 / RoHS REACH
• Contact: Email wanlinfirecontrol@163.com | Phone +8613261677119 | Website https://www.wanlinfire.com