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

Safe and reliable: The carbon monoxide detector's highly sensitive electrochemical sensor can accurately and quickly detect carbon monoxide leaks, protecting you from danger and minimizing false alarms. Audible and visual alarm: Our carbon monoxide detector monitors the carbon monoxide level in the air in real time. When a dangerous level of carbon monoxide is detected, the LED flashes and the buzzer sounds a continuous alarm to protect your family's life and the safety of your property. Easy to install: Simply rotate the detector's back plate, screw it to the wall or ceiling, insert two 4.5V AA batteries (not included), place the detector on the back plate, and rotate it. You will hear a low battery alarm when the battery is low, at which point you can easily remove the alarm from the back plate and replace the batteries. Wide monitoring range: The carbon monoxide detector can cover a wide range of areas, ensuring rapid detection of anomalies and triggering alarms when the carbon monoxide concentration changes, allowing you to react quickly and avoid danger.