The Guardian GUAT-340 Replacement Circuit Board is available for purchase through North Shore Commercial Door. This rolling code circuit board operates on a frequency of 303/390MHz and is compatible with Guardian Operator Models 315, 425, 428, and private labeled 200.57933. It is important to know that this board is a direct replacement for GUAT-310.
PART NUMBER: GUAT-340
Compatible with models 315, 425, 428, and 200.57933