Safe-T-Alert FX-4 Carbon Monoxide Alarm [FX-4]

FX-4 Carbon Monoxide Alarm Marine Use - Low Voltage Hard Wired Alarm. Replaces your CO alarms that are over 5 years old. No Bags. No Tags. Full 5-Year service life, longer than CO Sentinel CMD-4M alarms. CMD-4M and CMD-3M that have reached end of life. Features: Conforms To ANSI / UL STD 2034 - Marine Meets ABYC A-24. NMMA Listed Component Most Reliable Boats DC electrical system or marine grade b