Carbon Monoxide Detectors 2 Pack Fenary,Carbon Monoxide Alarm Replaceable Battery Operated with LCD Digital Display,CO Alarm Detector Monitor with Test Button for Home(Batteries NOT Included)

Product Features

• CARBON MONOXIDE DETECTOR FOR HOME SAFETY: Equipped with an advanced electrochemical sensor, this device accurately detects harmful levels of carbon monoxide (CO) in your home. It alerts you with four loud beeps (85 dB(A) at 3 metres) and a flashing red LED. NEVER IGNORE THIS WARNING.
• TEST BUTTON: Press the large TEST button to activate self-test mode. The LCD displays "000" with the backlight ON, the buzzer sounds "Di-Di-Di-Di," and the red LED flashes four times. After 5 seconds, the test repeats. The device returns to standby mode after 30 seconds, with the backlight and LCD OFF. In standby, it detects CO levels every 30 seconds, with the green LED flashing to verify the alarm is functioning correctly.
• Sensitive sensing: The alarm is usually in standby mode, the backlight and LCD are off, the device flashes green every 30 seconds to indicate that the product is working properly, the digital LCD display shows various real-time carbon monoxide concentrations, ranging from 000 to 999PPM, only when the carbon monoxide concentration is detected, the blue words automatically light up, and the display shows that the concentration exceeds 30ppm; 50ppm, alarm within 60 to 90 minutes; 100ppm, alarm within 3 minutes; 300ppm, alarm within 3 minutes. Note: When testing the detector, do not use gas to blow directly into the hole.
• PORTABLE CARBON MONOXIDE DETECTOR：Measuring 95 x 95 x 25 mm, this compact and lightweight device is perfect for on-the-go protection. Its free-standing design makes it ideal for travel, while the integrated mounting bracket and double-sided adhesive tape included screws allow for quick and easy wall installation when needed. Stay protected wherever life takes you!
• Easy Installation: This carbon monoxide detector provides continuous monitoring to keep your family safe. It runs on 3pcs AAA batteries (not included) and requires no wiring, so it remains functional even during power outages.When the power drops to 3.5v, the device willissue a low battery warning. The red light will flash but the alarm wil not sound. This is a reminder to replace the batteny.
• Carbon Monoxide Alarm Widely Used: CO monitor is certified to EN 50291-1:2018 safety certification, reliable quality. It is suitable for all domestic premises, including static and mobile homes, caravans, motor caravans, and boats.