How Do I Install a Doorbell Extender Transmitter?

You do not need an electrician. The transmitter connects to the screw terminals inside your existing wired chime.

1. Turn off power to the doorbell transformer, then take the cover off your wired chime.
2. Find the terminal strip. Most chimes have three screws, labeled Front (front door button), Back (back door button) and Trans (transformer).
3. Connect the transmitter's three wires, about 9 in long, one to each screw. If you have only a front door, connect the front and transformer wires and leave the back door wire unconnected.
4. Mount the transmitter inside the chime cabinet if there is room, or on the wall next to or just above the chime. The ERA-EXTX includes double-sided tape; the LRA-EXTX includes mounting hardware.
5. Plug in the receiver, pair it to the transmitter, and pick a melody for each door. Pairing steps are in the manual for your kit on the product user manuals page.
6. Restore power and test both doorbell buttons before you put the chime cover back.

Your wired chime keeps ringing as before; the receivers ring at the same time.