Therm-O-Disc Incorporated was founded in Mansfield, Ohio in 1947. Today, as a subsidiary of Emerson and a part of Emerson Appliance Solutions and Emerson Climate Technologies, the company is a recognized world leader in the design and manufacture of temperature sensors and controls for the HVAC, appliance, automotive, and electronics industries. With offices in the United States, China, Canada, Mexico, The Netherlands, United Kingdom, Hong Kong, Japan, South America, India and Korea.