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The WANLIN-770 Wireless Digital Pressure Gauge with LoRaWAN, 4G or 433 MHz Uplink ships with these headline parameters: alarm threshold two configurable alarm set points across the range, default low alarm at 0.35 mpa and high alarm at 1.6 mpa for fire main duty, accuracy class 0.5% fs standard, 0.25% fs on request, nist-traceable calibration certificate issued per unit, response time pressure update every 10 ms locally, radio report every 5 min nominal and within 5 s of any set-point breach, power supply 3.6v er34615 lithium cell, 2-year service life on the 4g sku, or 24v dc loop power drawing 25 ua standby, 120 ma peak transmit, output 4g lte cat-1 uplink with mqtt plus a local 4-20 ma loop, direct to the cloud platform for remote pump houses, coverage one gauge per fire main riser, pump discharge manifold or gas cylinder bank, up to 64 gauges per gateway, alarm output local lcd with a bar graph and alarm icon plus platform alert, sms and email escalation, ip65 gauge housing, ip68 on the remote diaphragm seal variant for submerged pump rooms enclosure, -20 deg c to +70 deg c process, -10 deg c to +55 deg c ambient electronics operating range and 100 mm diameter x 72 mm depth, 680 g net. As of September 23, 2026, Wanlin Group (Shenzhen, China) officially launches its 2026 flame detector export programme, featuring the WANLIN-770 Wireless Digital Pressure Gauge with LoRaWAN, 4G or 433 MHz Uplink as the flagship OEM and ODM component for overseas buyers, cross-border trading companies, EPC contractors, oil and gas operators, fuel terminals and depots, chemical and petrochemical plants, tunnel and transport authorities, hangar and marine operators, battery storage integrators, power and utility groups and regional importers who source flame detection hardware from a China-based source factory under the Wanlin brand. The programme targets importers, tender bidders, refinery and terminal operators, EPC and system integration contractors, chemical and pharmaceutical plant owners, mining and metals operators, waste-to-energy and biomass plants, road and rail tunnel authorities, aviation hangar operators, data centre and battery storage developers, marine and offshore operators and wholesale distributors who now buy optical flame 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, Det-Tronics, General Monitors, Spectrex, Fireye, Simtronics, Siemens, Bosch, Hochiki or Apollo. Wanlin Group as the flame detector 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-770 Wireless Digital Pressure Gauge with LoRaWAN, 4G or 433 MHz Uplink, piezoresistive silicon pressure sensor on a 316l isolation diaphragm with temperature compensation and a digital radio uplink. Sensing element piezoresistive silicon sensing die behind a 316l stainless-steel isolation diaphragm, silicone oil filled, hastelloy c276 diaphragm option. Alarm threshold two configurable alarm set points across the range, default low alarm at 0.35 mpa and high alarm at 1.6 mpa for fire main duty. Accuracy class 0.5% fs standard, 0.25% fs on request, nist-traceable calibration certificate issued per unit. Response time pressure update every 10 ms locally, radio report every 5 min nominal and within 5 s of any set-point breach. Power supply 3.6v er34615 lithium cell, 2-year service life on the 4g sku, or 24v dc loop power. Power consumption 25 ua standby, 120 ma peak transmit. Output signal 4g lte cat-1 uplink with mqtt plus a local 4-20 ma loop, direct to the cloud platform for remote pump houses. Coverage area one gauge per fire main riser, pump discharge manifold or gas cylinder bank, up to 64 gauges per gateway. Alarm output local lcd with a bar graph and alarm icon plus platform alert, sms and email escalation. IP rating ip65 gauge housing, ip68 on the remote diaphragm seal variant for submerged pump rooms. Operating temperature -20 deg c to +70 deg c process, -10 deg c to +55 deg c ambient electronics. Humidity range 10-95% rh non-condensing. Housing material 316l stainless-steel wetted parts with a polycarbonate v-0 electronics housing and a 100 mm dial-style lcd. Dimensions and weight 100 mm diameter x 72 mm depth, 680 g net. Certifications CE / EN 837-1 / RoHS / REACH / FCC / NIST-traceable calibration / 4G LTE Cat-1 carrier acceptance. The 2026 flame detection range is built on WANLIN-620 explosion-proof multi-spectrum IR3 flame detectors with UV/IR and AI video verification builds to EN 54-10, FM 3260 and ATEX or IECEx, WANLIN-303 combination-class detectors with 433 MHz interconnect, WANLIN-307 and WANLIN-309 IoT detectors on LoRaWAN, NB-IoT, 4G LTE Cat-1 and Wi-Fi, WANLIN-340 rate-of-rise heat detectors in A1R, A2S, BR and CS classes to EN 54-5, WANLIN-222 resettable wireless call points to EN 54-11, WANLIN-656 sounder strobes to EN 54-3 and EN 54-23, WANLIN-860 wireless fire alarm panels to EN 54-2, EN 54-4 and EN 54-21, WANLIN-705 smart electrical fire monitors to GB 14287.2 and GB 14287.3, WANLIN-868D LoRa concentrator gateways with Modbus TCP, MQTT and BACnet IP, WANLIN-770 wireless pressure gauges to EN 837-1, WANLIN-780 wireless level meters to EN 61326, WANLIN-365 combustible gas detectors to EN 50194, WANLIN-260 home fire safety kits, WANLIN-710 Wi-Fi smart circuit breakers to GB 16917 and the A119-YW aerosol test gun and heat detector tester used for commissioning and periodic inspection rounds, shipped with CE, UKCA, ATEX, IECEx, FM, FCC, CCCF and SASO documentation packages.
Executive summary - 12 buyer-relevant points:
- Flagship model WANLIN-770 Wireless Digital Pressure Gauge with LoRaWAN, 4G or 433 MHz Uplink, piezoresistive silicon pressure sensor on a 316l isolation diaphragm with temperature compensation and a digital radio uplink
- Sensing element piezoresistive silicon sensing die behind a 316l stainless-steel isolation diaphragm, silicone oil filled, hastelloy c276 diaphragm option
- Alarm threshold two configurable alarm set points across the range, default low alarm at 0.35 mpa and high alarm at 1.6 mpa for fire main duty
- Accuracy and response 0.5% fs standard, 0.25% fs on request, nist-traceable calibration certificate issued per unit / pressure update every 10 ms locally, radio report every 5 min nominal and within 5 s of any set-point breach
- Power and consumption 3.6v er34615 lithium cell, 2-year service life on the 4g sku, or 24v dc loop power / 25 ua standby, 120 ma peak transmit
- Output signal 4g lte cat-1 uplink with mqtt plus a local 4-20 ma loop, direct to the cloud platform for remote pump houses
- Coverage and notification one gauge per fire main riser, pump discharge manifold or gas cylinder bank, up to 64 gauges per gateway / local lcd with a bar graph and alarm icon plus platform alert, sms and email escalation
- 16 flame detection and companion hardware families from one factory: WANLIN-620 multi-spectrum IR3, UV/IR and AI video flame detectors, WANLIN-303 combination-class detectors, WANLIN-307 and WANLIN-309 IoT detectors, WANLIN-340 heat detectors, WANLIN-222 call points, WANLIN-656 sounder strobes, WANLIN-705 electrical fire monitors, WANLIN-860 fire alarm panels, WANLIN-770 pressure gauges, WANLIN-780 level meters, WANLIN-365 gas detectors, WANLIN-260 home kits, WANLIN-868D gateways, WANLIN-710 smart breakers and the A119-YW detector tester
- MOQ 200 pcs, lead time 20-28 days, EXW / FOB Shenzhen / CFR / CIF / DDP supported, 24 months warranty
- Flagship field reference Offshore process module, Stavanger, Norway: Two process modules needed flame detector replacement inside a 36-hour electrical shutdown.
- Target buyer: importer, tender bidder, EPC contractor, refinery and terminal operator, chemical plant owner, tunnel and transport authority, hangar and marine operator, battery storage integrator, power and utility group, mining operator, safety products distributor, cross-border trading company
- Contact: wanlinfirecontrol@163.com / +8613261677119 / www.wanlinfire.com
This article is written for B2B buyers in New Delhi, India who understand that flame detection is the one layer of a fire system where seconds, not minutes, decide the loss, and where the hardest engineering problem is not seeing the fire but not seeing everything else. Optical flame detectors have to separate a hydrocarbon fire from welding arcs, sunlight on water, hot furnace surfaces, halogen lighting, vehicle headlights and the dust, salt and condensation that blind every window eventually. Wanlin Group operates its own manufacturing facility in Shenzhen with SMT lines, optical calibration benches, a flame test gallery and a radio laboratory, exporting multi-spectrum IR3 flame detectors, UV/IR flame detectors, AI video flame detection cameras and the companion fire safety stack 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 flame detection project holds up: which optical principle matches the fuel, whether the certificate set matches the shipped model code, and whether the spacing design actually covers the shadows.
Flame detector demand is driven by the asset classes that grew fastest in the last decade: fuel terminals and truck loading racks, petrochemical and chemical processing, LNG and hydrogen infrastructure, battery energy storage, waste-to-energy and biomass, road and rail tunnels, aviation hangars, and offshore and marine assets. Insurer and authority expectations have moved with them: FM Global data sheet practice, NFPA 15 for water spray and deluge, NFPA 30 for flammable liquid storage, EN 54-10 as the European product standard and FM 3260 as the hydrocarbon benchmark are now written into specifications that used to say only fire alarm system. The buyers driving it are EPC contractors packaging detection with deluge, terminals and depots replacing legacy UV heads, hydrogen and biofuel plants discovering that their original detector cannot see their fuel, battery storage developers who need a clip for the insurer, tunnel authorities who need immunity from headlights, and national distributors supplying all of them. Contractors, importers and cross-border trading companies supplying New Delhi, India increasingly source this layer from China-based original manufacturers like Wanlin, because the landed cost of a Wanlin flame detector is 45-65% below Honeywell, Det-Tronics, General Monitors, Spectrex, Fireye, Simtronics, Siemens, Bosch, Hochiki or Apollo equivalents at the same EN 54-10 and FM 3260 documented scope with ATEX or IECEx certification, and because one factory covers the IR3 detector, the UV/IR detector, the video build, the gateway and the test lamp on a single shipment with one set of declarations.
Market access in New Delhi, India is anchored on BIS certification where an Indian Standard exists, otherwise NBC 2016 compliance with the state fire service NOC. Flame detectors, optical test lamps, mounting brackets, gateways and control panels shipped into New Delhi, India clear customs on one HS-coded packing list: the ATEX or IECEx certificate reference, the CE and RoHS declarations, the EN 54-10 or FM 3260 type-test reference and the per-unit calibration 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 54-10 or FM 3260 as applicable, a hazardous-area certificate 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 approval body reference of every device prior to import, since non-compliant or un-certificated flame detectors may be rejected by customs authorities, refused by the insurer, or excluded from the safety case that hydrocarbon and tunnel specifications demand.
Reference: EN 54-10 for flame detectors, FM 3260 and FM 3210 for hydrocarbon flame detection, UL 268 and UL 521 for North American listings, EN 54-7, EN 54-5 and EN 54-25 for the companion detection layer, ATEX directive 2014/34/EU and IECEx scheme for hazardous areas, IEC 61508 SIL2 and SIL3 for functional safety claims, NFPA 72, NFPA 15, NFPA 30 and NFPA 70 installation practice, BS 5839 and ISO 7240 for system alignment, GB 15631 for the China scheme, radio type-approval for the LoRaWAN, NB-IoT, LTE and Wi-Fi models, plus local petroleum, tunnel, aviation and workplace requirements in the destination market, and Wanlin Group 2026 flame detector export programme documentation.
The WANLIN-770 Wireless Digital Pressure Gauge with LoRaWAN, 4G or 433 MHz Uplink is engineered inside a four-layer flame detection architecture rather than as an isolated device: (1) an optical layer built on multiple spectral bands, a flicker window and an automatic LED and shutter self-check, because a blinded detector that still reports healthy is worse than a detector that reports a fault; (2) a decision layer applying band-ratio and flicker-frequency analysis with selectable immunity levels, so a welding arc on the pipe rack does not cost a shift of production; (3) a transport layer choosing per site between 4-20 mA into an existing PLC, RS485 Modbus RTU for the register map and the operator screen, relay contacts straight into the deluge and emergency shutdown logic, and LoRaWAN or 4G LTE Cat-1 where there is no cable to pull; and (4) an evidence layer holding the alarm clip, the event history, the obscuration trend and the self-test log, because the insurer, the 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:
The featured model is WANLIN-770 Wireless Digital Pressure Gauge with LoRaWAN, 4G or 433 MHz Uplink, part of the Wireless Digital Pressure Gauge and Pressure Transmitter (LoRaWAN / 4G / 433 MHz) family, configured as the 4g lte cat-1 build (2 variant). FOB Shenzhen reference price is $45.00 per piece at MOQ 200 pcs, with bulk tier pricing ranging $39.15-$49.95 depending on detection class, measuring range, enclosure rating, output protocol variant, certification scope and packaging artwork. Lead time is 20-28 days from PO confirmation and 30% T/T deposit receipt, with 24 months warranty.
The unique technical signature of WANLIN-770 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 54-10, FM 3260, UL 268, ATEX, IECEx, EN 54, ISO 7240 or EN 50194 product standard, the declaration of conformity scope, the hazardous-area certificate matched to the shipped model code and the response time requirement of the destination market. Detection distance must be re-stated for the actual fuel, since alcohol, hydrogen and LNG flames do not reproduce the n-heptane figure.
| Specification | Value |
|---|---|
| working_principle | Piezoresistive silicon pressure sensor on a 316L isolation diaphragm with temperature compensation and a digital radio uplink |
| sensing_element | Piezoresistive silicon sensing die behind a 316L stainless-steel isolation diaphragm, silicone oil filled, Hastelloy C276 diaphragm option |
| alarm_threshold | Two configurable alarm set points across the range, default low alarm at 0.35 MPa and high alarm at 1.6 MPa for fire main duty |
| accuracy_class | 0.5% FS standard, 0.25% FS on request, NIST-traceable calibration certificate issued per unit |
| response_time | Pressure update every 10 ms locally, radio report every 5 min nominal and within 5 s of any set-point breach |
| power_supply | 3.6V ER34615 lithium cell, 2-year service life on the 4G SKU, or 24V DC loop power |
| power_consumption | 25 uA standby, 120 mA peak transmit |
| output_signal | 4G LTE Cat-1 uplink with MQTT plus a local 4-20 mA loop, direct to the cloud platform for remote pump houses |
| coverage_area | One gauge per fire main riser, pump discharge manifold or gas cylinder bank, up to 64 gauges per gateway |
| alarm_output | Local LCD with a bar graph and alarm icon plus platform alert, SMS and email escalation |
| ip_rating | IP65 gauge housing, IP68 on the remote diaphragm seal variant for submerged pump rooms |
| operating_temp | -20 deg C to +70 deg C process, -10 deg C to +55 deg C ambient electronics |
| humidity_range | 10-95% RH non-condensing |
| housing_material | 316L stainless-steel wetted parts with a polycarbonate V-0 electronics housing and a 100 mm dial-style LCD |
| dimensions_weight | 100 mm diameter x 72 mm depth, 680 g net |
| certifications | CE / EN 837-1 / RoHS / REACH / FCC / NIST-traceable calibration / 4G LTE Cat-1 carrier acceptance |
Wanlin flame detectors are watching hydrocarbon and infrastructure assets across six continents: a truck loading rack at Rotterdam Port, an LNG loading area in Doha, an electric bus depot in Santiago, an offshore module out of Stavanger, a refuse bunker in Copenhagen, a hydrogen station in Aarhus, an ethanol column in Piracicaba, a coal gallery at Richards Bay, a shredding hall in Kocaeli, an MRO hangar in Sharjah, a road tunnel in Bergen, a battery yard in Antofagasta, a glass furnace in Vicenza, an LPG carousel in Alexandria, a geothermal plant room in Laguna, a biodiesel plant in Riau, a theatre fly tower in Prague, a crude unit in Yanbu, a gathering station in Atyrau, a paint shop in Puebla, a tank farm in Tema and a mine conveyor in Kiruna. Below are 5 detailed scenarios drawn from those deployments, each with a site, a device count, an output and integration arrangement, an installation or shutdown window and a measured or witnessed outcome rather than a capability claim.
Scenario 1: Offshore process module, Stavanger, Norway. Two process modules needed flame detector replacement inside a 36-hour electrical shutdown window, with Ex d certification and classification society acceptance. Twenty-two WANLIN-620 units in 316L stainless were bracket-mounted and pre-aimed onshore, so the offshore scope was a bracket-to-bracket swap and a loop check. Average installed time was 24 minutes per detector including the loop test, and the electrical scope closed four hours early. The heated window mattered more than expected: at 4 a.m. in the North Sea, condensation on an unheated optical face had been the cause of the fault alarms on the units being retired.
Scenario 2: Waste-to-energy refuse bunker, Copenhagen, Denmark. Nine WANLIN-620 IR3 units with heated windows and the wide-immunity sensitivity level watch a bunker where dust, steam and slow glowing hotspots produce the false alarm profile that makes operators disable flame detection entirely. The sensitivity was deliberately set one level below maximum, trading response speed for immunity, and the AI video build over the feed chute gives the shift supervisor a clip before authorising water. Bunker deluge discharges fell from roughly one per quarter on the previous system to one in fourteen months, and the two genuine hotspots were confirmed visually before any discharge, which changed how the shift team trusts the system.
Scenario 3: Hydrogen refuelling station, Aarhus, Denmark. Hydrogen flames are close to invisible in daylight and radiate mainly in UV, which is the reason this site rejected the IR-only detectors it was first offered. Six WANLIN-620 UV/IR units cover the dispenser island, the compressor skid and the storage bundle, with the 4G LTE Cat-1 variant reporting alarm state and clip metadata to the operations centre. The acceptance test was written around a hydrogen diffusion flame at 8 m, not a hydrocarbon pan fire, and the authority accepted that test in place of the standard figure. The station is permitted and the detector evidence is now part of the renewal pack.
Scenario 4: Ethanol distillation column, Piracicaba, Brazil. An ethanol mill had silenced its IR flame detectors because they never saw the acceptance fire: ethanol burns with low luminous output and the units had been specified against an n-heptane distance they could not reproduce with alcohol. Twelve WANLIN-620 UV/IR units were installed on the column and loading area, and the acceptance test was rewritten as a methanol pan fire at 12 m. The mill now writes the fuel into every flame detection enquiry, which is the transferable outcome: the specification error was in the datasheet comparison, not in the detector.
Scenario 5: Coal conveyor transfer points, Richards Bay, South Africa. Three kilometres of conveyor gallery, belt friction as the ignition source, coal dust on every optical surface, and a narrow geometry that suits a cone-of-vision device badly. The design deliberately covers only the transfer points, twelve WANLIN-620 units, and leaves the long runs to a heat detection line, an argument settled with the terminal safety manager on where a belt fire actually starts. The first transfer-point bearing fire was detected 90 s before the heat line reached its threshold, and the maintenance team adopted a documented obscuration trend instead of fixed-interval cleaning.
The WANLIN-770 Wireless Digital Pressure Gauge with LoRaWAN, 4G or 433 MHz Uplink and the wider Wanlin flame detector programme deliver 10 distinct advantages for cross-border B2B buyers who source flame detection hardware directly from a Chinese manufacturer:
Combined, these advantages allow Wanlin partners to win terminal and depot retrofit packages, refinery and petrochemical EPC packages, hydrogen and biofuel projects, battery storage and data centre programmes, tunnel and transport authority tenders, hangar and marine packages, mining and metals 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.
The WANLIN-770 Wireless Digital Pressure Gauge with LoRaWAN, 4G or 433 MHz Uplink carries the following certifications as standard scope: CE / EN 837-1 / RoHS / REACH / FCC / NIST-traceable calibration / 4G LTE Cat-1 carrier acceptance. 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 flame detection equipment sits across five compliance legs: the product standard such as EN 54-10, FM 3260 or UL 268, the hazardous-area certificate such as ATEX, IECEx or the Class and Division scheme, the installation practice such as NFPA 72, NFPA 15, NFPA 30 or the local petroleum 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.
For a typical first-time buyer ordering 2000 pieces of WANLIN-770 Wireless Digital Pressure Gauge with LoRaWAN, 4G or 433 MHz Uplink, the economics stack is:
| Cost Layer | USD per piece | USD for 2000 pcs |
|---|---|---|
| FOB Shenzhen factory price | $45.00 | $90,000.00 |
| + Sea freight FCL 40HQ (estimated) | $8.10 | $16,200.00 |
| CIF destination port | $53.10 | $106,200.00 |
| + Customs duty 3-10% (region dependent) | $3.15 | $6,300.00 |
| + Local delivery + warehousing | $16.88 | $33,760.00 |
| DDP landed cost | $73.13 | $146,260.00 |
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 20-28 days. Warranty is 24 months. Free DOA replacement within 60 days of receipt.
Below are 8 frequently asked questions from overseas buyers, cross-border trading companies and regional distributors sourcing flame detectors and optical flame 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.
Answer: Choose by fuel, geometry and the false-alarm sources you actually have, not by price. IR3 reads three infrared bands and their flicker signature, which rejects welding arcs, sunlight and hot surfaces well, and is the right choice for open hydrocarbon areas such as tank farms, loading racks, pump rows and offshore modules. UV/IR adds a solar-blind UV channel, which reacts faster and sees low-radiating flames such as hydrogen, methanol, ethanol and LNG, and is the right choice for confined booths, hydrogen refuelling and alcohol plants. The AI video build is specified when an incident clip, a region-of-interest mask or a long corridor coverage matters, for example tunnels, hangars, bunkers and heritage buildings. Wanlin supplies all three on the WANLIN-620 platform, so a mixed site uses one spare parts pool and one certificate set.
Answer: EN 54-10 is the European product standard for flame detectors and is what most building and industrial acceptance routes in Europe reference, with FM 3260 required by many North American and insurer-driven hydrocarbon specifications and UL 268 or UL 521 referenced in some North American listings. Hazardous areas additionally require ATEX and IECEx in the IEC scheme or Class and Division listings in the North American scheme, and functional safety projects ask for SIL2 or SIL3 capability per IEC 61508. Wanlin ships the WANLIN-620 with EN 54-10, FM 3260 and UL 268 documentation plus the ATEX and IECEx certificate set, and issues the SIL2 capability statement and the per-unit calibration certificate with each device so the authority submittal does not stall on documentation.
Answer: Spacing follows the cone of vision and the fuel, not a floor area rule. The WANLIN-620 IR3 covers a 90 degree cone with a class 1 detection distance of 25 m on a 0.1 m2 n-heptane pan fire and about 40 m on a 0.5 m2 pool fire, and in practice one detector covers 600-900 m2 of open process area once sight-line shadows from pumps, racks, tanks and parked vehicles are modelled. Wanlin supplies a spacing and coverage design with every project quotation, including the exclusion zones and the aim survey findings, because the usual failure is not the detector but a shadow nobody modelled. Detection distance must always be re-stated for the actual fuel: alcohol, hydrogen and LNG flames do not reproduce the n-heptane figure.
Answer: The sources are welding arcs, sunlight and reflection off water or chrome, hot surfaces such as furnace forehearths and flares, halogen and strobe lighting, vehicle headlights in tunnels, and an obscured window from dust, salt or condensation. The WANLIN-620 handles them in three layers: multi-band ratio and flicker-window analysis in the IR3 build, a solar-blind UV channel with coincidence logic in the UV/IR build, four selectable sensitivity levels with an optional confirmation delay, and an automatic optical self-check every 12 h that raises a fault rather than waiting for a missed fire. Site practice matters as much as the detector: a region-of-interest mask on the video build, heated windows in cold or humid sites, and a documented window cleaning cycle driven by the fault output.
Answer: Yes. Every WANLIN-620 build carries a 4-20 mA current loop plus RS485 Modbus RTU and two changeover relay contacts rated 5 A, so the alarm and fault states drop straight into an existing PLC, deluge panel or fire alarm control panel without a protocol gateway. The register map, the topic structure for MQTT and the BACnet IP objects used by the WANLIN-868D gateway are supplied as integration documentation with the order. For sites without cabling, the LoRaWAN and 4G LTE Cat-1 variants report alarm, fault, obscuration and self-test state to the cloud platform and onward to SMS, email, push and voice call escalation.
Answer: The WANLIN-620 carries ATEX Ex d IIC T6 Gb and IECEx certification for the IEC scheme used across Europe, the Middle East, Asia, Africa and Oceania, with EAC and GOST documentation for the Eurasian route. North American projects asking for Class I Division 1 or Division 2 listings are handled as a documentation and construction variant, because the scheme is not a paperwork conversion but a different approval basis. Wanlin states plainly which scheme each shipped SKU is approved under and matches the certificate to the shipped model code and serial prefix, which is the detail that decides most tenders after an earlier one failed on mismatched documentation.
Answer: Commissioning uses a portable flame test lamp rather than a live fire, so a detector can be functionally proven during operation without a permit to burn, and the aim survey is documented per unit with photographs. Routine maintenance is dominated by window condition, and the WANLIN-620 reports an obscuration fault automatically every 12 h through its internal LED and shutter self-check, which lets sites move from fixed-interval cleaning to condition-based cleaning. Wanlin supplies the test lamp, the commissioning checklist, the aim record template and the recommended inspection interval by environment, from monthly in a shredding hall to six-monthly in a clean electrical room.
Answer: MOQ is 50 pieces for the WANLIN-620 at an FOB Shenzhen reference price of USD 268 per piece, with tier pricing from 13 percent below to 11 percent above that reference depending on the build, enclosure material, output variant, certificate scope and packaging artwork. Lead time is 20-30 days from order confirmation and deposit, warranty is 36 months, and sample orders ship in 3-7 days for standard builds or 7-15 days for configured builds. OEM and ODM support covers housing colour and labelling, private brand artwork, destination-language manuals, Modbus register and MQTT topic customisation, and a joint certification cost-share under the regional distributor and strategic OEM partnership tiers.
Wanlin flame detector 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: Tyre recycling shredding hall, Kocaeli, Turkiye. A tyre-derived-fuel plant had detectors that kept reporting an obscured window within days of cleaning, because shredded rubber dust loads the optical faces continuously. The plant moved to the WANLIN-620 with the automatic optical self-check and changed the maintenance regime from weekly cleaning to a fortnightly wash with a documented obscuration trend, using the fault output rather than waiting for an alarm to be missed. Fourteen units cover the shredding hall, the storage bays and the conveyor transfer points. The measured outcome was maintenance labour: window cleaning fell from about 26 hours per month to 9, and the plant stopped keeping two spare detector heads on the shelf.
Case 2: Coal conveyor gallery, Richards Bay, South Africa. A coal terminal runs 3 km of conveyor galleries where the ignition source is belt friction and the detection problem is coal dust on every optical surface plus a long, narrow geometry that suits a cone-of-vision device badly. The design used WANLIN-620 units at transfer points only, 12 detectors, rather than trying to cover the gallery length, and paired them with a heat detection line on the belt itself. That choice was argued out with the terminal safety manager on the grounds that a flame detector covers the transfer point where the fire starts, and the line covers the run. The first transfer-point bearing fire was caught before the belt burned through, with the flame signal arriving 90 s ahead of the heat line.
Case 3: Historic theatre fly tower, Prague, Czechia. A heritage theatre had a conservation constraint that ruled out drilling into listed masonry and an insurer requirement for flame detection over the fly tower where painted scenery and hemp ropes sit under hot lighting. The installation used four WANLIN-620 units on the existing steel grid with clamp mounts and no new fixings into masonry, plus the AI video build aimed at the grid where the operator can see the clip. The conservation officer accepted the clamp arrangement in writing. The theatre noted the unglamorous benefit: the video clip is now used as evidence in the annual insurance review that the fly tower has been free of ignition events.
Case 4: Geothermal steam field plant room, Laguna, Philippines. A geothermal operator had repeated nuisance alarms from a plant room with high ambient temperature, steam leaks and hydrogen sulphide corrosion that destroyed the previous detector housings within two years. Nine WANLIN-620 units in 316L stainless with the conformal-coated board and the heated window were installed, with the wide-temperature range and a documented 6-month window inspection rather than annual. Two years on, the housings show surface staining but no corrosion at the gland entries, and the operator has retired its earlier practice of keeping a complete spare set in a sealed cabinet because the failure rate no longer justifies it.
Wanlin offers 3 partnership tiers for cross-border flame detector buyers, EPC contractors, terminal and refinery operators, tunnel and transport authorities, battery storage integrators, contractors and overseas cooperation partners:
| Tier | Annual Volume | Discount | Exclusivity | Support |
|---|---|---|---|---|
| Authorized Reseller | USD 30,000+ | 0% (list price) | No | Standard warranty per family |
| Regional Distributor | USD 100,000+ | 22% off list | Single country | Co-marketing USD 6,000/year, joint certification cost-share |
| Strategic OEM Partner | USD 320,000+ | 32% off list | Multi-country | Dedicated engineering team, joint roadmap, 18-month price lock |
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.
Wanlin Group 2026 flame detector export program is now open for global B2B buyers, regional distributors, EPC contractors, refinery and terminal operators, chemical and petrochemical plant owners, hydrogen and biofuel developers, battery storage and data centre integrators, tunnel and transport authorities, aviation hangar operators, marine and offshore operators, mining and metals groups, facility management contractors, insurers, cross-border trading companies and OEM and ODM partners across 60+ destination markets. To initiate a sourcing discussion, request a quotation or schedule a factory audit in Shenzhen, please contact our export team via the channels below. Sample orders ship within 3-7 days via DHL Express for in-stock SKUs; custom-configuration samples require 7-15 days. Standard lead time for bulk OEM orders is 20-28 days. Strategic OEM Partner applications are reviewed quarterly and require a minimum USD 320,000 annual commitment.
We sincerely invite global safety equipment buyers, national importers, tender bidders, EPC and system integration contractors, terminal, depot and refinery operators, hydrogen, LNG and biofuel project developers, battery storage and data centre integrators, tunnel, rail and aviation authorities, marine and offshore operators, mining and metals groups, petroleum and chemical majors, 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 under the Wanlin brand. Wanlin is the Chinese source factory behind 60+ country flame detection programmes, the SMT lines, optical calibration benches and flame test gallery behind every batch, and this 12-section export program. Let us catch the fire in the first five seconds together.
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working_principle: Piezoresistive silicon pressure sensor on a 316L isolation diaphragm with temperature compensation and a digital radio uplink sensing_element: Piezoresistive silicon sensing die behind a 316L stainless-steel isolation diaphragm, silicone oil filled, Hastelloy C276 diaphragm option alarm_threshold: Two configurable alarm set points across the range, default low alarm at 0.35 MPa and high alarm at 1.6 MPa for fire main duty accuracy_class: 0.5% FS standard, 0.25% FS on request, NIST-traceable calibration certificate issued per unit response_time: Pressure update every 10 ms locally, radio report every 5 min nominal and within 5 s of any set-point breach power_supply: 3.6V ER34615 lithium cell, 2-year service life on the 4G SKU, or 24V DC loop power power_consumption: 25 uA standby, 120 mA peak transmit output_signal: 4G LTE Cat-1 uplink with MQTT plus a local 4-20 mA loop, direct to the cloud platform for remote pump houses coverage_area: One gauge per fire main riser, pump discharge manifold or gas cylinder bank, up to 64 gauges per gateway alarm_output: Local LCD with a bar graph and alarm icon plus platform alert, SMS and email escalation ip_rating: IP65 gauge housing, IP68 on the remote diaphragm seal variant for submerged pump rooms operating_temp: -20 deg C to +70 deg C process, -10 deg C to +55 deg C ambient electronics humidity_range: 10-95% RH non-condensing housing_material: 316L stainless-steel wetted parts with a polycarbonate V-0 electronics housing and a 100 mm dial-style LCD dimensions_weight: 100 mm diameter x 72 mm depth, 680 g net certifications: CE / EN 837-1 / RoHS / REACH / FCC / NIST-traceable calibration / 4G LTE Cat-1 carrier acceptance