Combustible Gas Leak Detector, 5 ppm, Display & Sound Alert

Detects a wide range of combustible gases including gasoline, propane, natural gas and fuel oilDesigned for one-handed operationAmbient concentration reset functionUser adjustable sensitivity (High/Low)Tricolor visual indicatorSelf test sequence on start-upLow battery indicator and auto shut offUser replaceable sensorIncludes ISO CertificateItems with calibration certificates are non-returnable and non-refundable due to the limited validity of the certification