K1D8389-1CC is the DC UL325 Main Control Replacement Board. For use with various LiftMaster^® DC Pad Mount Residential Commercial Swing and Slide Gate Operators; manufactured after 2016. This board is backwards compatible for older second generation units, but will require UL325 Monitored Entrapment Protection System, and Monitored Photoelectric Sensors or Edge Sensors on the OPEN entrapment zone that are now MANDATORY. Failure to add the OPEN Monitored Entrapment Zone Protection will cause the unit to not function properly. This replacement logic board is compatible with the following models: CSL24U, CSL24UL, CSW24U, CSW24UL, RSL12U, RSL12UL, RSW12U, and RSW12UL

Genuine LiftMaster^® replacement part.