Feature: 1. Wide Range of Applications: The wireless and portable design allows you to install door sensor anywhere in your home, office and business. 2. Ensure Home Safety: With door window sensor, timely notification of the status of door and window, to ensure sleep safety, and ensure the safety of your home. 3. Support Voice Control: The smart door sensor also supports the voice control of for Google Home, enriching your smart life and making it more convenient for you to use. 4. For TUYA Push Alarm: The phone app can remotely push alarm information about door and window opening and closing. When you leave home, your phone will send you the latest information in real time. 5. Easy to Operate: 2.4GHz WIFI one key connection, smart door sensor is really simple to use, and it is also easy to install, no complicated operations. Specification: Item Type: Door Sensor Material: ABS Usage: Install in any Part of Your Home, Office and Business Battery: AAA 1.5V 2pcs (not include) Standby Current: ≤5uA Wireless Type: 2.4GHz WIFI Protocol: IEEE 802.11b/G/N Standby Time: 4-6 Months Operating Temperature: -10℃-60℃ (14℉-140℉) Working Humidity: 20%-85%. Package List: 1 x Sensor1 x Door Magnetic2 x Sticker4 x Screw1 x Manual