1Use: Propane gas detector for recreational vehicles, propane takes up a certain percentage in the air and will explode, which is the biggest safety hazard for your RV and campers, so our propane alarm is your best helper to solve this problem. 2Propane Leakage Detection: When dangerous levels of propane gas are detected, the detector signal will activate, sounding an alarm. 3Digital Screen: This RV propane alarm has a digital screen that clearly displays the propane value (%LEL) in real time so you know when to response and fix the problem. 4Silence Settable: you can activate the reset or silent circuit to temporarily silent the detector while you ventilate so as not to disturb your rest. 5Loudly Alarm: When propane levels exceed 5% LEL (the default), our propane gas detectors will sound a strong enough alarm to ensure that you can respond quickly even when you are sleeping or outdoors.