The R4211 control board is the replacement circuit board for the Mighty Mule FM500 Single 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.
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