Natural Gas Detector, TopTes PT177 Gas Leak Detector with Audible and Visual Alarm, Portable Gas Snooffer to Locate - ShopVlot

Combustible Gas Leak Detector: PT177 is a handy little tool that helps any household with gas appliances to quickly and easily locate the leakage of combustible gas, including LPG, methane, ethane, propane, butane, natural gas, coal gas, etc. Important Warm-up Note: Before use, the PT177 must be turned on and heated for 30 seconds in a clean, gas-free environment to ensure accurate detection results Visual and audible alarms: The PT177 gas detector requires an automatic calibration of 30 seconds