XR-4
Linear's Xtended Range FM Receivers are and transmitters are designed for use in various wireless remote control applications. When the Model XR-4 receiver detects a signal from its companion transmitter, it will verify the digital code, activate the correct output channel, and trigger the remote device connected to the receiver.
![XR-4](http://powerdoorproducts.com/cdn/shop/products/8edab507-5112-463c-8107-26c85b46ff96_xr-4.jpg?v=1651854878&width=1445)