X-Sense Wireless Combination Smoke and CO Detector, XP0H-WN, 3-Pack

From the brand

Standalone Model

Interconnected Model

2-in-1 Protection: The smoke and carbon monoxide detector is equipped with both photoelectric smoke sensor and electrochemical CO sensor that both detect smoke and dangerous CO levels
ETL Listed: The smoke and carbon monoxide alarm meets the UL 217 & UL 2034 safety standards for your peace of mind and absolute confidence in our product
Simple Installation: Requires no rewiring; easy to mount this fire and CO alarm on any wall or ceiling with the included mounting bracket, screws and anchor plugs
Combination Alarm with CO Readings: the large LCD display clearly indicates real-time carbon monoxide (CO) levels in the surrounding air, as well as its battery level and working status