WiFi Smart Security Alarm System Kit is compact and lightweight, very suitable for installing in door or window of your house to provide home security. Features: Wifi Smart Door Window Sensor: it is used to detect whether doors, windows, drawers, etc. have been illegally opened or moved, it will automatically alarm and notify you, easy control by APP/remote controller. APP Remote Control: add the device in APP to detect the status of your door/window, easy to control the smart sensor via APP(Smart Life). 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. Multiple People Sharing: you are able to share the device with others, thus they can control the device as well. Easy Installation: for installing the Transmitter and Magnet, it equipped with 5 pairs of double-sided adhesive tapes, no wire required; for installing the Receiver, wall mounted with the 2 screws and anchors, or just place it on the table. Battery Operated Transmitter: easy to install and replace 2 AAA/LR03 batteries(NOT included). With low power consumption, which has long standby time. WiFi Smart Security Alarm System Kit: includes a Alarm Host (Receiver), 5 * Wireless Door Detector (Transmitter and Magnet), 5 * Pair of Double-sided Adhesive Tape, 2 * Remote Control, 2 * Screws and Anchors, 1 * Eject Pin, 1 * Type-C Cable, 1 * Manual (English). Wide Application: protects your door or window and provides home security. Widely used in home, garage, apartment, dorm, shop, office and so on. Specifications: Material: ABS Operating Voltage: DC5V Static Current: 80mA Alarm Current: 300mA Alarm Volume: 90dB Wireless Frequency: 433.92MHz WiFi: IEEE 802.11 b/g/n 2.4G APP: Smart Life Working Temperature: -10~50 Wireless Door Power Supply: 2 * 1.5V LR03 AAA battery (NOT included) Remote Control Power Supply: 1 * 3.0V 210mAh CR2032 button battery Transmitter and Magnet Installation Distance: 7mm Item Weight: 239g / 8.46oz Package Weight: 330g / 11.65oz Package Size: 11.3 * 11.2 * 8.5cm / 4.45 * 4.41 * 3.35in Package List: 1 * Alarm Host (Receiver) 5 * Wireless Door Detector (Transmitter and Magnet) 5 * Pair of Double-sided Adhesive Tape 2 * Remote Control 2 * Screw 2 * Anchor 1 * Eject Pin 1 * Type-C Cable 1 * Manual (English)