Rev Counter Board Replacement for FM350 FM352 FM500 FM502 FM600 2000XL,Compatible with RVCTBD50,Replace for Mighty Mule GTO, Green
    

 Description
  
Solve the problem that your door cannot be opened correctly. No need to find
an engineer, you can replace it by yourself, easy to install.
  
Features:
  

    
Rev Counter Board.
Fit for FM350 FM352 FM500 FM502 FM600 2000XL.
Rev Counter Board: Calculate the opening distance of the opener and solve the problem that your door cannot be opened correctly.
Please judge the fault location based on the buzzer sound: 3 beeps will be heard when the main arm is faulty, 4 beeps will be heard when the sub-arm is faulty.
Please sealing and draining during installation,avoid short circuit of the circuit board caused by water ingress and failure to work properly.