62 Series Carbon Monoxide Alarm - 24V Flush Mount - Black with RelayFeatures: NMMA Listed Component. Space-saving design works in a harsh marine environment. Works in extreme temperatures. Only marine CO alarm listed to operational temperatures of -40AdegF to 158AdegF. Alarm has consistently held up in the excessive cold and heat due to high quality sensor. No False Alarms due to new boat smell, outgassing, or non-hazardous levels of hydrocarbon gases encountered while boating. Interconnect and generator shut-off alarms available. Low Current Draw(37 mA). Innovative micro current circuit saves battery power for the boater. Alarm Mute with Auto Reset. With the press of a button, the mute circuit will temporarily silence the alarm while the boater ventilates the cabin. Alarm will reactivate if it still senses dangerous levels of CO. End-of-Life Signal alerts the boater to replace the alarm after 5 years of service. Memory Scan. Retains the CO level that activated the alarm. After ventilation, it is impossible to know what the CO level was unless the detector has memory. Rapid recovery sensor resets when silenced or reactivates the alarm if dangerous levels of CO remain. Specifications: Conforms To ANSI / UL STD 2034* * Testing Laboratory: ETL/Intertek Alarm Point: 400 PPM 4-15 Minutes Low voltage power warning at 7 Volts Power Supply and Current Draw: 37 mA @ 13.8 VDC Operational Range: 13.8 Volts +/-15% Low voltage power warning at 7 Volts Operating Temperature: -40AdegF to +158AdegF Case Size: 4.5"W x 3.25"H x 1.25"D