Our industry bimetal thermometers is ideal for most rugged industrial temperature measurement application, such as in chemical and petrochemical industry, machine and apparatus construction, food and beverage industry , pulp and paper industry. The hermetically-sealed case offers protection from weather and dust, and is guaranteed against fogging up, the bimetal helix is coated with a viscous silicone to minimize pointer oscillation and improve temperature transmission. There are three types of Industry Bimetal Thermometers with different connection. Write us now for the products detail .