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.•Xintex Detector with (1) Channel Sensor 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