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This digital carbon monoxide sensor is a battery-operated CO gas monitor with sound and visual alarm functions, designed for home use and portable storage, providing reliable protection against hazardous carbon monoxide gas.

Features:
Improve accuracy: Adopting high-quality sensors, this device guarantees higher accuracy in detecting hazardous gases, ensuring your with a reliable carbon monoxide sensor.
Real-time standby screen: Continuously monitors and displays the concentration value. When there is no alarm, the screen shows 0 ppm, making it convenient to check the CO alarm status at any time.
Historical alarm record: After the alarm is triggered, press the test button to view the highest concentration since the last activation of the alarm sensor.
Wide range of application scenarios: Suitable for various environments. When you are not at home, the carbon monoxide gas monitoring and alarm sensor will record the alarm for you to check upon your return.
User-friendly features: The portable CO sensor is easy to operate with simple controls, ensuring a perfect experience for users of all ages.

Specification:
Origin: Chinese mainland
Power supply: 4.5V DC
Battery: 3 × 1.5V AAA (not included, need to be prepared separately)
Shell material: abs5
Product dimensions: approximately 105.00 × 105.00 × 33.00 mm / 4.13 × 4.13 × 1.3 inches

Package includes:
1pcs x carbon monoxide alarm

Please Notes:
1. Due to different display configurations and lighting conditions, the actual color of the item may slightly differ from the picture. Thank you for your understanding!
2. Due to manual measurement, the allowable measurement error is 1 to 2 centimeters.