Smoke and carbon monoxide detectors, combination smoke detectors, CO2 smoke detectors in 1

【Advanced Sensor Technology】The smoke detector and regular detector are equipped with dual high-sensitivity photoelectric and electrochemical sensors. In the event of smoke or fire detection, the red LED flashes rapidly and triggers an alarm to alert you and protect your home and family from disaster.

【Convenient LCD Screen】Equipped with a digital LCD screen, it displays the real-time concentration of smoke and carbon monoxide in the air, as well as the battery level.

【Powerful Alarm】An 85-decibel audible alarm and a rapidly flashing red LED provide rapid alerts in case of smoke and carbon monoxide risks.

【Battery Powered】Requires 3 AA batteries for power. This product is supplied without batteries; these must be purchased separately.