62 Series Carbon Monoxide Alarm - 12V - 62-542-Marine - Flush Mount - BlackMini Carbon Monoxide Alarm with a compact space saving design that replaces your CO alarms that are over 5 years old!Features:Space SavingCompact design for boatsDesigned for the harsh marine environmentNo False Alarms due to new boat smell, outgassing or non-hazardous levels of hydrocarbon gases encountered while boatingAdvanced Technology - Alarm Mute button silences alarm while boat is ventilatedRapid recovery sensor resets when silenced or reactivates alarm if dangerous levels of CO remainReliable - 12 Volt power means no missing or dead batteries to replaceMemory 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 memoryMicro Current Technology - Saves precious battery power in a boat62-541-R-Marine and 62-542-R-Marine include normally closed relayUse to turn on exhaust fans, remote horns/lights/signals or connect to alarms systemsListed to UL 2034 Marine Use and CSA 6.19-01