Wiring device, wiring device system, method for controlling wiring device, and program

To improve reliability of communication.SOLUTION: A wiring appliance 1 is a wiring appliance 1 used for a wiring appliance system A1 comprising a plurality of wiring appliances 1, as one of the plurality of wiring appliances 1. The wiring appliance 1 comprises a first communication unit 11, a second communication unit 12, and a communication control unit 13. The first communication unit 11 performs radio communication with an operation terminal 2 using a first communication method. The second communication unit 12 performs radio communication with one or more other wiring appliances 1 other than the wiring appliance 1 of the plurality of wiring appliances 1 using a second communication method with a communication range longer than that of the first communication method. When the first communication unit 11 receives first data from the operation terminal 2 to the other wiring appliances 1, the communication control unit 13 makes the second communication unit 12 transmit second data based on the first data to t