Portable Gas Leak Detector 50-1000PPM Sound&Light Alarm Combustible Gas Detector Natural Methane LPG Leak Detection Gas Detector

High-concerned chemical : None Brand Name : Shunmaii Origin : Mainland China Certification : None Natural Gas Detector : Gas Leak Detector Portable Gas Sniffer : Combustible Gas Detector Origin : Mainland China Sensor type : semiconductor Sensor warm-up time : about 30 seconds Detection range : 50-1000 ppm (methane) Response sensitivity : <50 ppm (methane) Response time : 5 seconds (500 ppm) or 2 seconds (>500 ppm) Alarm mode : analog display and sound alarm Power supply : 2 AAA alkaline batteries (not included) Working environment : 0C to 50C/50F to 122F, 20%-80% RH Storage environment : -10C to 60C/14F to 140F, 20%-80% RH Shell material : ABS Product size : about 145.00x35.00x20.00mm/5.71x1.38x0.79inch