HT Instruments started in 1983 as a company focused on marketing clamp-on meters and digital multimeters. In 1992, HT Instruments designed and built its own test equipment because of the ideas and experience that the company had gained over the years as a marketer. HT Instruments came out with the first product that could perform safety testing while simultaneously printing a report with a built-in printer. The success of this product resulted in company growth and the development of other test equipment. The brand now makes analyzers, meters, thermal imaging equipment, and curve tracers. Consumers can purchase new, used, and refurbished HT Instruments at ValueTronics.com.