DIVINZ DivineXt arbon Monoxide Detector CO Monitor Gas Smoke Alarm Sensor for Home Safety Wired Sensor Security System

Loud 85 decible alarm, permanent carbon monoxide sensor, powered by 3aa size batteries. * The unit is of maifuction if the unit sound all the times. * Chirp every 30s as battery lower than 3.3V with green LED flashing and Lb on LCD. * Red Led quickly flashes 4 times with unit chirping every 5 seconds, then repeat, Low-bat. * LCD Displayer (optional) 4 digits LCD displayer. * Sensitivity/Alarm within 60~90 minutes at 50ppm CO concentration. * Loud 85 decible alarm, permanent carbon monoxide sensor, powered by 3aa size batteries.