The Wireless Relay with Extended Range is the perfect solution when you cannot run wire or existing wires have been cut or damaged. It communicates wirelessly up to ½ mile between the two devices. The Wireless Relay contains (2) two-channel transceivers. The modules have 2 transmitting channels and 2 receiving channels. Each transceiver is equipped with LEDs that are used to indicate the operation state. Additionally, the transceivers have momentary pushbuttons which are used to “pair” two units together, or force a data transaction. Each transceiver has a built-in inactivity circuit to detect loss of communication.