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These circuit boards are NEW. We do NOT sell "refurbished". This board is for DoorKing models 1601, 1602 and 1603 barrier gate operators (see compatibility chart below). Please note: circuit boards can not be returned for a refund. Please be sure you require this part, and it is the corre..

This circuit board is for DoorKing models 6002, 6003, 6004 and 6400***Important Note: for models manufactured BEFORE Jan 2016***Please note: circuit boards can not be returned for a refund. Please be sure you require this part, and it is the correct model. If there is a problem "out-o..