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| 1.It has doorbell function, can remind user to set alarm. | |||
| 2.Both sides have magnets. Easy to install and change batteries. |
New Wireless automatic door sensor
Power supplied 12V(inside battery12V)Transmission frequency:433MHz±0.5 MHzSending distance: No obstacle 80mstatic current: ≤10uAAlarm current ≤30mA(door bell not work) ≤80mA(door bell work)Alarm distance: 20mmWork condition: temperature -10~40°C Humidity ≤90%
New Wireless automatic door sensor