3 Pack Combination Smoke Carbon Monoxide Alarm Detector Battery Operated, Portable Smoke and Co Alarm for Home Bedroom Travel，Easy to Install

2-in-1 Precision: the Smoke Detector Coupled with a Carbon Monoxide Detector Alarm Can Notify You In an instant When Smoke or Carbon Monoxide Concentration in Dangerous Level Is Detected, Which Helps You Escape from the Threat of Two Gases.
Stable Performance: with a Combination of Photoelectric Smoke Sensors and Electrochemical Co Sensors That Work Independently of Each and every Other, the Carbon Monoxide and Smoke Alarm Makes It Imaginable to Minimize False Alarms.
The LCD display is more practical: it might indicate the true-time carbon monoxide (CO) concentration within the surrounding air. When there’s a CO concentration of 30-999PPM within the air, the screen will change to blue backlight and display the true-time concentration.
User-friendliness:You Can Examine the Alarm Once a Week by Pressing the “Test/Silent” Button of This Carbon Monoxide and Smoke Alarm, and You Will Have Easy Get entry to to the Working Status of the Alarm through Failure and Low Battery Alarm; in an Emergency, the Alarm with Above 85 dB in Sound Will Inform Your Whole Circle of relatives of Danger In an instant to Safeguard Health of Your Circle of relatives Members.
We Provide a 12-Month Worry-Free Refund Guarantee and a 5-Year Warranty. If You Have Any Questions or Concerns, Please Do Not Hesitate to Contact Us at Any Time, and We Will Reply to You within 24 Hours. You Can fully Accept as true with Our Products.