X-Sense Smoke and Carbon Monoxide Detector Combo, Wireless Interconnected Combination Smoke and Carbon Monoxide Detector with 10-Year Battery, Up to 24 X-Sense Link+ Wireless Alarms, SC01-W, 3-Pack

X-Sense Smoke and Carbon Monoxide Detector Combo, Wireless Interconnected Combination Smoke and Carbon Monoxide Detector with 10-Year Battery, Up to 24 X-Sense Link+ Wireless Alarms, SC01-W, 3-Pack

X-Sense Remote Controller RC01 Pro for X-Sense Link+ Wireless Smoke & Carbon Monoxide Detector Alarms (1-Pack)

X-Sense Smoke Detector, Wireless Interconnected Fire Alarm with 10-Year Battery Life and Transmission Range of Over 820 ft, SD20-W, Pack of 6