DescriptionThe item is a carbon monoxide alarm pattern, which adopts advanced level of protection, and easy to read with the digital display, even in low light conditions. This alarm is highly recommended to be mounted on a wall surface. It is a perfect item for protecting your family from the dangers of carbon monoxide.Features- Color:White. - Material: ABS. - Size: 10103.8cm. - Sensor: Electrochemical CO sensor. - Environment: Temperature: 0C-45C, relative humidity: 20%-95% non-condensing. - The detector is easy to install and use. - A perfect item for protecting your family from the dangers of carbon monoxide. - Easy to read with the digital LCD display, Alarm memory feature. - Loud 85 decibel alarm,Powered by 3*1.5V AA batteries (battery not included) - Green and red LED lights that indicate normal operation and alarm status. - Green LED: Flashes every 30 seconds to indicate the unit is operating properly. The green LED will also flash before CO reading is taken and when any button is pressed. - Red LED: When a dangerous level of carbon monoxide is detected the red LED will pulse and a loud alarm pattern will sound.