Carbon monoxide detector, camping alarm, 600 dB

Easy Installation: The CO detector comes with screws for easy wall or ceiling mounting. Powered by three 1.5V AA batteries (not included), it requires no wiring, is portable, and easy to install without a power outlet. The battery ensures continuous monitoring, even during a power outage! The CO detector's battery can be used for approximately 36 months. It is easy to replace and has a long lifespan. High Accuracy and Reliability: It is equipped with an advanced electrochemical carbon monoxide sensor that accurately detects CO levels in real time. Instant Alert: When the carbon monoxide detector reaches the alarm level, the CO sensor detects CO, the red LED flashes, and the blue backlight of the LCD screen illuminates. An 85-decibel audible alarm is emitted. Self-Test Function and Informative LCD Screen: The device emits a beep and the red LED flashes once upon power-up. "888" appears on the LCD screen. Then press the test button to hear beeps and a flashing red LED. Displays real-time CO levels and memorizes dangerous CO levels since the last setting. The LCD screen displays "Err" to indicate a malfunction. The LCD screen displays "Lb" to indicate a low battery and the need for replacement. The LCD screen displays "000" for 3 seconds, then returns to normal operating mode. Widely used: Carbon monoxide detectors are suitable for living rooms, kitchens, bedrooms, offices, hotels, dormitories, and portable CO2 detectors for travel. They effectively prevent fires and provide reliable protection for your family's safety.