Genie Optical Encoder (RPM Sensor) Part # 39735R.S

The Genie Optical Encoder (RPM Sensor) Part # 39735R.S works with Genie brand chain and belt drive smart connected garage door openers.

This part is compatible with Models 3120H, 3120HB

• We only accept returns on UNOPENED boxes for circuit boards. Please make sur that this is the correct board for your opener before ordering.
• If the circuit board is faulty, please contact us for warranty replacement procedures BEFORE returning the circuit board.
• We can be reached at mcoverheaddoor@gmail.com for support with warranty and ensuring you order the correct board.