433MHZ Wireless Door Window Entry Magnetic Sensor Alarm Anti Theft Home Security System Description: These wireless door/window magnetic sensors are used to protect the opening of both doors and windows. If a burglar opens the protected door or window, a magnetic switch inside the sensor will be triggered, which sets off the security system. Nothing is more important than life. You are deserved this. Features: Magnetic sensor alarm alerts, when a window or door is opened, providing a layer of security. It will work with most standard security system which is using 433MHz receiver. Built-in omnidirectional antenna, accurate, high-performance and low power consumption. Easily mounted by adhesive stickers, no other tools are needed, easy and quick installation. Ideal warning for doors, windows, drawers, counter, hotel rooms, garages, and more! Specification: Condition: Material: Plastic Color: White Battery: 1 * 12V/23A battery (built-in) Working Voltage: 12V 23A Working Current: <15mA Quiescent Current: <5mA Operating Frequency: 433MHZ Frequency Deviation: ±0.2MHz Transmitting Power: >15mw Transmitting Range: >100m(open field) Transmitting Time: 1.5-3s Magnetic Control Effective Distance: -15mm/-30mm Package Weight: Approx. 46g Package Included: 1 X Window Magnet Sensor 1 X  Adhesive Sticker