�Koabbit Gas Detector & Alarm】- This is a new plug-and-play natural gas detector, which saves a lot of installation time. �High Accuracy Reading】- Adopt imported catalytic combustion sensor with sensitive response. �Alarm Alert】- When the concentration of combustible gas leaks to a preset level, the gas detector alarm will sound an 85dB alarm as well as display the concentration level of the gas. Suitable for detecting natural gas, propane, methane, butane, LNG, LPG, etc. Warranty: 2 years warranty, if you have any technical problems, please contact us, we will reply to you as soon as possible.