2 in 1 CO & smoke combo detector, built in high accurate electrochemical sensor & infrared photoelectric sensor.
LCD displays CO concentration: 000~999PPM, and the blue backlight will be activated when alarming.
If CO gas concentrations over 100PPM or smoke concentration over 0.1%db/m, the buzzer will make sound “di” and the LED light will flash to alert you.
Alarm Pause(Hush Mode): you can press the test button to stop the alarming sound when non-emergency.
Test/Reset button to test the unit electronics, check alarm concentration or reset the unit.
Low Battery Warning: the red LED light and LCD display will remind you when power shortage.
Powered by 3 * 1.5V AA batteries(not included), ultra-long standby time and low current consumption.
Suitable for all the places, such as your kitchen, bedroom, bathroom, garage, etc.