Check the listing for details. Wayne Dalton Door Master Opener Logic Board 300882. Condition: New. Listed at 59.95 USD. Wayne Dalton Door Master Logic Board 300882FeaturesNew Original Wayne Dalton replacement part.Replaces Wayne Dalton Door Master Logic Board p/n 283896.Replacement control board for Doormaster openersAlso compatible with Wayne Dalton Doormaster garage door opener models that do not have Infrared Sensors.We only stock the newest versions for improved performance.No return on electrical parts.This Logic Board will ONLY FIT the Wayne Dalton Door Master Opener.We recommend using the LiftMaster 990 LM Garage Door Opener Surge Suppressor when replacing safety sensors or circuit boards in garage door openers. The Wayne Dalton model 300882 logic board and the Liftmaster 990 LM, surge protector can be purchased thru our store.All logic boards are new & not returnable.