Carbon monoxide detector with replaceable battery and digital LED display, CO alarm for home security, portable indoor CO monitor

Safe and reliable: The carbon monoxide detector's highly sensitive electrochemical sensor can detect carbon monoxide leaks accurately and quickly, protecting you from danger and minimizing false alarms.
Sound and light alarm: Our carbon monoxide detector monitors the carbon monoxide content in the air in real time. When dangerous carbon monoxide levels are detected, the LED will flash and the buzzer will sound a continuous alarm to protect your family's life and property.
Easy Installation: Simply twist the backplate detector, screw it onto the wall or ceiling, insert 2 x 4.5V AA batteries (not included), place the detector on the backplate, and rotate it into position. You can hear the low battery alarm when the battery is almost empty. Then you can simply remove the alarm from the backplate and insert new batteries.
Large Monitoring Area: The carbon monoxide detector can cover a large area, ensuring quick detection of abnormalities and triggering an alarm when the carbon monoxide concentration changes. This allows you to respond quickly and avoid danger.