Simple and easy to install plug-in propane fume detector with Var-A-Brite indicator lamp that brightens during the day and softens at night. Detect propane leaks early and automatically shut off gas supply to prevent personal injury and possible explosions.•Xintex Detector with (1) Channel Sensor and solenoid valve for Propane (LPG) •Detect propane leaks early to prevent personal injury and possible explosions•68 dBA Alarm•2" Round Bezel•Test-button•Alarm silence•2" display housing•Color: Black