1. Working temperature: 0-50 degrees Celsius 2. Working voltage: 2 AA batteries 3. Alarm sound: greater than 85dB 4. High quality chip, can avoid other gas interference 5. When the main body detects carbon monoxide leakage, the LED digital display can display the carbon monoxide concentration value in real time 6. Through the air inlet detection, when the concentration value is reached, the sound and warning light will be emitted
