Great functional condition The Fast Heat 585601 REV E Temperature Control Board KM43000JN PCB Circuit Board is a crucial component for controlling and regulating temperature in HVAC and refrigeration systems. Designed specifically for the PULSE FAST HEAT brand, this electric-powered control board is compatible with Fast Heat products, providing precise control over heating and cooling systems. The board features the model number KM43000JN, ensuring a seamless fit and reliable performance for your temperature control needs.