35-741-BL MTI Industry Carbon Monoxide/ Propane Leak Detector Our complete line-up of Propane Carbon Monoxide and Smoke And Fire alarms will give you peace of mind while you enjoy your RV with friends and family. Built to withstand the rugged RV environment Safe-T-Alert alarms are designed to handle the vibration shock humidity and extreme temperatures met along the road while conserving battery power. Safe-T-Alert stands alone in delivering reliable RV safety alarms and trouble-free service at an affordable price. Our alarm features have been road tested to solve RVers unique problems. Each alarm offers safe easy testing and high performance. Trust Safe-T-Alert alarms to keep you protected from the hidden dangers on the road. Double-Duty Alarm - Detects Both Gas Leaks And CO Gas Simultaneously Reliable - 12 Volt Power Means No Missing Or Dead Batteries To Replace Durable - Built For The Extreme RV Environment Limited 1 Year Warranty Function : Detects Both LP And CO Gas Type : Surface Mount Alert Type : Alerts To Leak With Beeping Display Type : No Display Diameter (IN) : Not Applicable Power Source : 12 Volt Hardwire Color : Black