Thailand school fire alarm provider

Wanlin Fire - China source manufacturer for fire alarm lead time. Featured model WL-TH-CO (CO & Combustible Gas Detector): Semiconductor combustible gas: LPG / natural gas / methane; EN 50194-1: alarm before 10% LEL (LPG) / 8% LEL (methane); 85 dB at 3 m sounder + relay + solenoid valve output; -10 to +50 deg C, 0-95% RH. Full lineup: smoke and heat detector···