Features:
1. Low-power door and window magnetic sensor, which can identify the opening and closing status of doors and windows, and realize intelligent alarm
2. Smart category: Tuya Smart, APP operation is convenient and stable, can be used with WIFI
3. Carefully polished, exquisite appearance, compact, matching appearance, easy installation
4. It can realize door and window abnormal switch alarm, intelligent hardware linkage, app dynamic monitoring switch status
5. Technology: low power consumption, easy to disassemble, fast charging.
6. Function: Support all hardware linkage of Tuya Smart, support app alarm, alarm alarm; support wifi networking (you can use it with a router).

Parameter:
Lithium battery: 450mAh
Charging voltage: DC 5V
Wireless connection: WiFi2.4GHz
Charging time: 1.5H
Distance between magnet and sensor: 5~22mm
Working hours: 2500+ times
Weight: 60g

Package list:
1*Door sensor
2* Double-sided tape
1* Micro USB charging cable
1* manual
1* Reset pin