... smoke alarm detector,GAS detector,SMOKE detector,IR detector,home alarm system,heat detector,carbon monoxide detector,LPG,LNG Detect LPG leakage.Intelligent MCU control, low power consumptionVisual light and audio alarm ... ,Installed on the wall, home use only. LPG-201 Alarm ... relative humidity:≤93%Alarm volume:≥80dBResponse time:≤ ...