Gas Sensor can provide a timely warning when natural gas leaks. It uses industrial-grade sensors for real-time detection and also supports remote viewing from mobile phones. Once a gas leak is discovered, LifeSmart Gas Sensor will immediately sound the alarm and push the information to your phone to help you eliminate gas hazards. gas leak detection includingmethane, natural gas and biogas, 24/7 push notificationand sound alert, sensitivity adjustable, history record, 5vPower Supply