UK BS 5839 twice yearly testing regulation

Kidde smoke detector adapter tester direct from Wanlin Fire Protection — 12-year factory experience, WL-ST300 smoke detector tester certified CE/UL 268A/EN 54/NFPA 72/BS 5839/AS 1851. Key specs: Aerosol Dispersion + Bluetooth 5.0 + Mobile APP + Data Logging + Test Report Generation, Bluetooth 5.0 + Mobile APP (iOS/Android) + Test Data Storage + Automatic Re···

smoke detector tester for EN 54-7 compliance direct from Wanlin Fire Protection — 12-year factory experience, WL-ST900 smoke detector tester certified CE/UL 268A/EN 54/NFPA 72/BS 5839/AS 1851. Key specs: Complete Test Kit: Smoke Tester + Heat Tester + Sensitivity Meter + Telescoping Wand + Multi-Brand Adapters + Cloud Platform, Bluetooth + WiFi + Cloud Plat···