Carbon Monoxide Detector, CO Gas Monitor Alarm Detector CO Sensor with LED Digital Display and Sound Warning for Home, Depot, Battery Powered

The carbon monoxide detector alarm continuous monitoring of Carbon Monoxide levels to keep your family safe. Operated by 2 * 1.5V AAA batteries (not included), Features an advanced electrochemical carbon monoxide sensor that accurately detects carbon monoxide levels, no matter where the detector is placed in the room., Simple to use,with a single test/reset button,when a dangerous level of carbon monoxide is detected the red LED will flashes and a loud alarm pattern will sound--Loud 85 decibel alarm with LED Flash., Alarm standard: 50ppm, alert within 60 to 90 minutes; 100ppm, alert within 10 to 40 minutes; 300ppm, alert within 3 minutes., All CO alarms are rigorously tested. If you have any questions, please feel free to contact us