Specifications: Input voltageDC3V LR03*2 Battery: AAA*2 (not included) Standby current 10uA Alarming current 15mA Low-voltage notification 2.5V Wireless Technology:ZigBee Transmission Frequency:2.4GHz Magnetic control distant : 15mm Working temperature -10-55 Working humidity 90%RH Feature: 1.Tuya Smart ZigBee Door&Window Sensor:A Tuya ZigBee Wireless Gateway Hub is a must to work with the door&window sensor,as well as a variety of ZigBee smart products. 2.Real-time remote monitoring:Whenever and wherever you are,once Door/Window Sensor detects external objects or animals, you will receive a notification by smart phone. 3.Wide Applications:Apply the smart door/window sensor to different scenes,your bedroom,garage,bathroom,garden and anywhere you like. 4.Battery powered for low power consumption;New designed with Low battery reminder supported. 5.Easy installation with double-side tape,simply stick it anywhere you like to protect your house security. Notes: This product needs to be used with Tuya zigbee gateway