Smart Door Window Sensor is compact and lightweight, very suitable for installing in door or window of your house to provide home security. With high sensitivity and quick response, it will push alarm notifications to the smart APP when the door/ window opens or closes. Features: Smart Door Window Sensor, 2 Options: Wifi or ZigBee type. A ZigBee smart gateway is required for using the ZigBee smart sensor, please prepare by yourself. APP Remote Control: Add the device in APP to detect the status of your door/ window, easy to control the smart sensor via APP. Push Alarm Notifications: It will push notification message to your smartphone when the door/ window opens or closes, so you can discover the danger in time. Magnetic control distance: 15mm. Wide Application: Protects your door or window and provides home security. Widely used in home, garage, apartment, dorm, shop, office and so on. Easy Installation: Equipped with 2 screws and a double-sided adhesive tape, wall mounted or self-adhesive installation, no wire required. Battery Operated: Easy to install and replace 2 AAA/ LR03 batteries (not included). With low power consumption, with long standby time and low voltage indication. Note:Size and color may be slightly different due to manual measurement and different light conditions. Thanks for understanding. Specifications: Type: Type 1 (Wi-Fi)/ Type 2 (ZigBee) -- Optional Color: White Material: ABS Magnetic Control Distance: 15mm Wi-Fi: 2.4GHz, 802.11 b/ g/ n APP Download: Compatible with Smart/ Smart Life Power Supply: 2 * 1.5V AAA/ LR03 Battery (Not included) Low-voltage Indication: 2.4V Working Temperature: -10~50 Working Humidity: 95% RH Item Size: 70 * 25 * 20mm / 2.76 * 0.98 * 0.79in, 40 * 15 * 17mm / 1.57 * 0.59 * 0.67in Item Weight: 30g / 1.05oz Package Size: 8.5 * 5.5 * 2.5cm / 3.35 * 2.17 * 0.98in Package Weight: 41g / 1.45oz Package List: 1 * Smart Door Window Sensor 1 * Double-sided Adhesive Tape 2 * Screw 2 * Hose 1 * User Manual (English)