X10 Wireless Smart Door Window Sensor
Dont make the classic security mistake Make sure to link every door and window to your home security system. These wireless magnetic sensors run on two AAA batteries. Any time the door or window is opened and the system is armed it will be instantly triggered. Use them on our frontback door sliding glass door windows garage door and more They are tamper-resistant.
The SR751 Repeater repeats X10 RF (Radio Frequency) signals. This is especially useful if you are trying to cover a larger are with any sort of X10 RF signal. Things like remotes, alarm systems and motions sensors really benefit from the RF Repeater. The unit also has an electrical passthrough at the bottom of the module so you dont even have to lose that outlet! NOTE: The SR751 Repeats RF Signals operating at 310 MHz. This is the range that X10 RF signals operate.