Alarm memory function: If the unit ever surprises, pushing the switch, eco-friendly LED will certainly flashes once every secondly for one min and also the top alarm level will certainly be suggested on the LCD. The eco-friendly LED will certainly likewise blink prior to Carbon Monoxide reading is taken and also when any type of switch is pressed.
Brand New and High Quality,LCD Displayer with a Blue Ground Light.Loud 85 decibel alarm,Permanent Carbon Monoxide Sensor,The Alarm Sound Pattern is Three Short Alarm Beeps. The Red LED Will Flash While in the Alarm Mode.
One chirp every 30 seconds in an indication that the battery is low (need replacement) (green LED still flashes once every 30 seconds).
Test/Reset button to test the unit electronics and verifies proper unit operation and reset the unit during CO alarm.
Green and red LED lights that indicate normal operation and alarm status. The unit will sound chirp and red LED flashes once as power up.
Red LED:When a dangerous level of carbon monoxide is detected the red LED will pulse and a loud alarm pattern will sound.