And to help anyone else who might be confused, the device comes in two parts, a "transmitter" and a "receiver". But the transmitter detects motion by itself wit

And to help anyone else who might be confused, the device comes in two parts, a "transmitter" and a "receiver". But the transmitter detects motion by itself without needing another piece placed on the other side of the door, and the receiver is what plugs into the computer to know when to hide the windows (or execute the custom command).