United Electric Controls Co designs and manufactures various temperature sensor products including thermocouples, RTDs, thermistors and integrated circuit temperature sensors.

Dwyer manufactures a variety of temperature sensors including: air/duct temperature sensors; averaging temperature sensors; general-purpose, immersion temperature sensors; weatherproof, immersion temperature sensors; in-line IR sensors; outside air temperature sensors; surface-mount temperature sensors; wireless, remote-probe temperature sensors; and wireless, wall-mount temperature sensors.

Measurement Specialties manufactures temperature sensors for medical and laboratory probe, military, aerospace, instrumentation, HVACR, and automotive applications. The company is a provider of high-percision NTC thermistors, temperature probe assemblies and thermopiles.