Product Features:
【Zero-Risk Purchase】The combination smoke and carbon monoxide alarm complies with UL217 and UL2034 standards. We are committed to offering qualified products and best customer service. Full refund or free return within 60-day money-back guarantee, 3-year quality warranty, and lifetime technical support，Protect your home and family with smoke alarms!
【2-in-1 Precision】the Smoke Detector Coupled with a Carbon Monoxide Detector Alarm Can Notify You Immediately When Smoke or Carbon Monoxide Concentration in Dangerous Level Is Detected, Which Helps You Escape from the Threat of Two Gases.
【Battery powered】Powered by One 9V batteries, this alarm is long life, durable and safe. You'll receive audible and visual alerts when it's time to replace the battery（Does Not Included Battery）
【Stable Performance】with a Combination of Photoelectric Smoke Sensors and Electrochemical Co Sensors That Work Independently of Each Other, the Carbon Monoxide and Smoke Alarm Makes It Possible to Minimize False Alarms.
【The LCD display is more practical】it can indicate the real-time carbon monoxide (CO) concentration in the surrounding air. When there is a CO concentration of 30-999PPM in the air, the screen will change to blue backlight and display the real-time concentration.
【Premium Material】Made from an upgraded PC material that is heat-resistant, high-temperature resistant, and corrosion-resistant
Specification：
Detection Gas：Smoke, Carbon Monoxide
Material：Heat-Resistant PC Plastic Material
CO: sensitivity and time 50PPM 60-90 minutes alarm ,100PPM 10-40 minutes, alarm 300PPM 3 minutes alarm
Power Source:Battery Powered (no included)
Alarm Mode：90dB High-Pitched, Sound And Light Alarm
Working Humidity：≤95% RH
Package Content:
1x Combination smoke detector
1x Set Mounting Anchors and Screws
1 x User Manual
