Manufacturer Name: KMC Controls Product Number: CTE-5202 OEM Part Number: CTE-5202 The KMC Controls CTE-5202 is a 24-volt electronic thermostat designed to regulate the temperature of your HVAC system. It functions by sending signals to your furnace or air conditioner to alter the temperature based on a comparison between the present temperature in the room and the desired setting. https://www.partshnc.com/cte-5202-kmc-controls-24velectronicstat0-12vdcalmond