This Wayne Dalton model 297138 / 02-3039 UH is a Wireless Keypad / keyless entry controller. This unit works with Wayne Dalton Classic Drive garage door opener models using 303 MHz radio frequency. If your remote control is any of the following this unit will work with your opener:309884, 297134, 02-3047-3BUH, 297132, or 02-3047-1BUH.
Brand: Wayne-Dalton, Model: 4331029256