The Honeywell HZ311K Truezone Kit includes a Truezone Panel, Transformer, and discharge air sensor. Designed for central air and heat systems, this kit is compatible with certain Honeywell Home HZ311K models. With a power source of 24 VAC, this corded electric component is ideal for use with central furnace and central air conditioner systems. Weighing 3.6 pounds, this kit is a reliable choice for maintaining and improving the efficiency of your heating and cooling system.