Audible & Visual Alarm Combination smoke and carbon monoxide detectors have audible and visual alarm functions. When the combination detectors monitor the harmful smoke or CO, fire alarms will emit a warning sound greater than 85 decibels, which can remind you and your family to avoid injury.
2-in-1 Sensitive Alarm Smoke and carbon monoxide detectors adopt photoelectric and electrochemical sensor designs,which can detect the hazardous smoke and CO gases simultaneously and effectively. When the concentration reaches 300ppm, smoke and CO combo alarms will alarm within 3 minutes; Alarm within 10 to 40 minutes when reaches 100ppm; And will alarm within 60 minutes when reaches 50ppm.
Battery Powered & Test Button Smoke detector carbon monoxide detectors powered by 3 x AA size 5 batteries. Smoke and carbon monoxide alarms sound pattern are 4 beeps every 5 seconds for the first 4 minutes. In 4 minutes, smoke and CO alarms will change to 4 beeps ever minute to save the battery. And you can utilize the test button to test if the smoke & CO alarms are working properly, or restart the fire alarms.
LED Display & Indicator Light Smoke and CO detectors are designed with an LED display so that can see the values of concentrations at anytime, which can address the threat of potential hazards in advance. In addition, combo smoke & CO alarms have 3 different indicator lights. The green light means normal operation; The red light means that the smoke and carbon monoxide concentration is over the limit. And the yellow light is reminding you need to change the batteries.
Easy Installation & Applicability Combination carbon monoxide and smoke detector are easy to install, which can be installed on any wall or ceiling. Portable smoke detector carbon monoxide alarms do not contain any radioactive substances, suitable for bedroom, kitchen, living room, basement, hotel, office and other places.
