Wireless 433MHz Window Door Magnetic Sensor Alarm Entry Warning System for Home Security (10 pack)

Features:
*Wireless 433MHz window door magnetic sensor, it includes one transmitter part and one magnetic part, with the function of detecting door or window's opening or closing.
*Monitoring and security system with high reliability, it will be triggered and immediately sends out wireless signal to main alarm system for warning when the door or window is open.
*Low power consumption, save power design, high-performance.
*Super design with small size, strong flexibility.
*Easy installation and high sensitivity.