This control board is a durable, flexible replacement for the circuit board in any of these gate openers. The R4211 control board is capable of handling single and dual gate installations, and it can support push and pull-to-open settings.
From the Manufacturer
The R4211 control board is the replacement circuit board for the Mighty Mule FM500, FM502 automatic gate openers. This control board is meant to be a durable, reliable replacement for the circuit board in any of these gate openers. The R4211 control board is capable of handling single and dual gate installations and it can support push-to-open and pull-to-open settings. All GTO/Mighty Mule accessories will work with this board and it is made to fit easily into any control box.
- Manufacturer has revised the board and updated to the newest version for this reason you may receive a Red or Green R4211/R5211 control board that will be the same replacement as the blue one, as show below