propane gas detector

Wanlin Fire - China source manufacturer for aspirating smoke detector. Featured model WL-TH-SD (Photoelectric Smoke Detector): Photoelectric, 850 nm infrared scattering chamber; EN54-7 Class A2, alarm at 0.10-0.13 dB/m obscuration; Built-in 85 dB at 3 m sounder + NO/NC relay contact; -10 to +50 deg C, 0-95% RH (tropical humidity rated). Full lineup: smoke an···

smoke heat and CO combo detector direct from Wanlin Fire Protection — 12-year factory experience, WL-GA200 4G smart fire protection product certified CE/FCC/RoHS/REACH/ISO9001. Key specs: 4G LTE + Semiconductor Gas Sensor (NG/LPG Dual), 4G LTE + SMS + Push + Phone Call + App + Solenoid Valve Control. No monthly fees, 4G cellular backup, cloud platform, DIY i···