- Surface Key Switch w/ Cover in Single Gang Box.
- Open-Close w/ Center Return.
- H-4-1/2", W=2-3/4", D-3".
Note: Due to constant improvements and upgrades, color and size may vary on these items. This unit comes with no wiring instructions. The wiring requires no soldering and is easy, but the exact setup may vary from application to application. See your door opener or gate operator for exact instructions.