Dwyer Instruments temperature probes operate by measuring changes in the resistance through solid, liquid and gas medium; ideal for applications in medical, HVAC and food & beverage industries. The brand's TE Series temperature probes feature stainless-steel construction with a contact-style sensing method to measure air and liquid temperature changes ranging from -40 to 302 degrees F. Choose from a wide range of these temperature probes along with thermo anemometers & hygromotors on Raptor Supplies, an authorised distributor of Dwyer Instruments.