The HK42FZ011 Furnace Control Board is a reliable and compatible unit designed for use with Carrier, Payne, and Bryant central furnaces. With a thickness of 1 inch and a voltage of 24V, this control board is suitable for both corded electric and gas-powered furnaces. It is a guaranteed working product that provides replacement for the model 1012-940 and is a genuine Carrier brand unit. Ideal for HVAC professionals and DIY enthusiasts, this furnace control board is a crucial component for maintaining and repairing heating systems.