62 Series Carbon Monoxide Alarm - 12V - 62-542-Marine - Flush Mount - White. Mini 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 - 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/l