Carbon Monoxide Alarm with 85dB @ 10 ft Audible Alert; 120V AC - Grainger
Safe-T-Alert Carbon Monoxide/Propane Alarm, White | Overton's
Mini Dual LP/CO Alarm - Flush Mount - White - 25-742-WT – United RV
Buy Safe-T-Alert 62-541-MARINE-RLY-NC 62 Series Carbon Monoxide
Amazon.com: MTI 603.111 Safe-T-Alert Industries 35-742-WT Dual LP/CO Alarm - 12V, 35 Series Flush Mount, White, "6-3/8" w x 2-7/8" h x 1" d" : Tools & Home Improvement