

XTCS277
Create a 3-way, 4-way, or more-way switch by combining the X10 Companion Switch for WS4777 with an X10 Master Switch (WS4777). This companion switch sends commands to the master switch, which then relays commands to the appropriate X10 receiver. It's perfect for hallways, stairways, and other areas where two switches for one X10 receiver would be convenient.

A basic X10 system includes a Transmitter and a Receiver – both sold separately. Transmitters are control devices that send X10 signals through your home's electrical wiring to X10 Receivers. When a Receiver receives a command, it responds by turning a light, appliance or other electrical device On or Off, and sometimes Dim or Bright.
X10 began manufacturing home automation and security products in the late 70s, establishing X10 as a smart home standard. X10 utilizes powerline technology to transmit control signals anywhere in your house over your existing electrical lines, so you can control lights and appliances throughout your home without running new wires! Have complete, automated control over lights and appliances from anywhere in your home with X10.