Combo Carbon Monoxide Propane Alarm - WhiteHave a safe TRIP!Test and inspect the Propane and CO alarms installed in your RV every week and replace malfunctioning alarms.Replace all Propane and CO alarms that are 5 years old or older.Install alarms listed for RV use.Prevent accidents by teaching family and friends about the operation of the alarms. Never ignore a sounding alarm.Features:. Double-duty alarm - Detects both gas leaks and CO gas simultaneously. Reliable - 12V power means no missing or dead batteries to replace. Durable - Built for the extreme RV environment. Approved - Meets RVIA/NFPA requirements. End of Life Signal. Specifications:. Box Dimensions: 2"H x 8"W x 10"L WT: 0.4 lbs. UPC: 715456257426