1. Power supply: 220VAC

2. Power consumption: 3.8W

3. Alarm sonority: ≥85dB

4. Working temperature: 4℃--38℃

5. Working humidity: 25%--85%RH

6. Low voltage alarm: a sharp sound / 15s

7. Static indication: red LED light flash 1 time/ 2s

8. Can be connected with system

9. At 70PPM, alarm within 60--240 minutes

At 150PPM, alarm within 10-50 minutes

At 400PPM, alarm within 4-15 minutes

10. Product size: 12.6x7.2 x4.6cm