Temprel, Inc. is a manufacturer and seller of temperature sensors and related equipment including: Thermocouples Brake and Rubbing Thermocouples Thermocouple Wire Thermocouple Extension Harnesses Standard & Mini Thermocouple Connectors Thermocouple Mounting Hardware Brass and Stainless Steel Compression Fittings Brass Hose & Aluminium Couplings Hose Clamp Mounts Custom Mounting Solutions Thermowells Our products are used in a variety of industries including Automotive Research and Development, Diesel Engine Testing, Aerospace, Boiler and Furnace Applications, Plastic Injection Molding, Gas Turbine Exhaust, Kiln Temperature Measurement, Dairy Pasteurization, and Laboratory Experiments. The company was founded in 1968. Temprel relocated to Boyne City, Michigan in 1973 and moved its headquarters to its present location in the late 1980s. The company has a long-tenured staff of well rained craftspeople that take pride in being a Made-in-Michigan producer of high quality temperature sensors. We offer high quality, fast turnaround, and competitive prices. We specialize in custom applications and can work with you to design and manufacture temperature sensing equipment to meet your custom application.