Profile: Tegam, Inc. specializes in the design and manufacturing of test, measurement & calibration instruments. Our brands include Voltman™, Gertsch™, ESI™ and Pragmatic™. Our products include RF power meters, RF amplifiers, RF calibration softwares, arbitrary waveform generators, power amplifiers, instrumentation amplifiers, waveform softwares and safety voltmeters. We also provide phase sequence indicators, motor rotation indicators, thermocouple thermometers, thermocouple probes, RTD thermometers, RTD probes, thermistor thermometers, thermistor probes, temperature calibrators, LCR meters and ratio transformers. Our Model 1806A dual type IV power meter is designed for use with thermistor elements and an external DVM to measure high frequency power. It can also function as a standard for the calibration of RF detectors, RF voltmeters, and thermistor mounts.