Safe-T-Alert by MTI Industries’ Dual Propane/Carbon Monoxide Alarm with Flush Mounting detects both gas leaks and carbon monoxide gas simultaneously. Twelve volts power means no missing or dead batteries to replace and this alarm is built for extreme RV environments. This product meets RVIA/NFPA requirements and is listed to UL 1484 RV and UL 2034 RV. Available in white or black.