62 Series Carbon Monoxide Alarm - 12V - 62-541-Marine Surface Mount - WhiteMini Carbon Monoxide Alarm with a compact space saving design that replaces your CO alarms that are over 5 years old!Features: Space Saving. Compact design for boats Designed for the harsh marine environment No False Alarms due to new boat smell, outgassing or non-hazardous levels of hydrocarbon gases encountered while boating Advanced Technology - Alarm Mute button silences alarm while boat is ventilated Rapid recovery sensor resets when silenced or reactivates alarm if dangerous levels of CO remain Reliable - 12 Volt power means no missing or dead batteries to replace Memory Scan(TM) - Retains the CO level that activated the alarm. After ventilation, it is impossible to know what the CO level was unless your detector has memory Micro Current Technology - Saves precious battery power in a boat 62-541-R-Marine and 62-542-R-Marine include normally closed relay Use to turn on exhaust fans, remote horns/lights/signals or connect to alarms systems Listed to UL 2034 Marine Use and CSA 6.19-01 Specifications: Fume Type: Carbon Monoxide Generator Shutdown: No Voltage - Input Range (Volts): 12v Box Dimensions: 3"H x 8"W x 10"L WT: 0.4 lbs UPC: 715456625416 Quick Guide (pdf)Owner&';s Manual (pdf)