KA-WF03 Wireless Tuya WIFI Window Door Magnetic Detector Sensor Alarm Specification:
1. Working Voltage: DC3V 2*LR03AAA battery
2. Static current: 30 uA
3. Trasmitting current: 35mA
4. Working environment: -10-50ºC
5. Wifi: IEEE 802 11 b 2.4GHz
6. Alarm output: Tamper alarm, open door reminder,closing reminder, low battery warning

KA-WF03 Actual photos: