QCVN gas alarm

QCVN gas alarm manufactured by Wanlin Fire Control - professional smart fire safety solution with 4G connectivity. Integrated solenoid valve control, EN50194/GB15322 certified, CE/RoHS/FCC compliance, 85dB+ alarm. Factory-direct pricing, global shipping, complete export documentation. OEM/ODM available. Contact wanlinfirecontrol@163.com for bulk quotation an···

gas leak detector with shut-off direct from Wanlin Fire Protection — 12-year factory experience, WL-GA201 4G gas detector certified CE/EN50194/UL2075/FCC. Key specs: Semiconductor Gas Sensor + NB-IoT Cellular Communication + Ultra-Low Power Design, NB-IoT + Cloud Platform + SMS/Push/Email Alerts + Low-Power Wide Area + Remote Valve Control. Catalytic/infrare···