General Info

Founded in 1922, Watlow is one of the largest custom designers and manufacturers of industrial heaters, sensors, controllers and software. It serves a wide variety of industries, including semiconductor, plastics processing, foodservice equipment, life sciences, power generation and aerospace. Headquartered in St. Louis, the company has offices and manufacturing facilities worldwide. Watlow offers a wide range of heaters, including advanced ceramic, cable, cartridge, ceramic fiber, cast-in, flexible, multicell, and circulation and process heaters. The company is a fully integrated supplier of wires, mineral insulated cables, connectors and a wide array of temperature sensors. In addition, Watlow offers a full line of thermowells, protecting tubes, hardware and connectors.