| 1. Voltage range: 9V--24VDC |
| 2. Static current: ≤10mA |
| 3. Alarm current: ≤20mA |
| 4. Operating temperature: -5℃ -- +65℃ |
| 5. Working humidity: 10%--90% RH |
| 6. Product size: 10.4x9.2 x5.6cm |
| 7. Installation: indoor or dry occasion |
| 8. LED indicator: in no-alarm state,green indicator flashing,when alarming red indicator shining |