UEi
UEi is a mechanical testing and maintenance firm that provides testing equipment such as multimeters, refrigerant detectors, and temperature and humidity testers, just to name a few, along with a warranty on all its products. The company also gives servicing of UEi Combustion Analyzer and NIST+, details of which are provided on the official website itself. The company uses bleeding-edge technologies to find accuracy in testing and thereby builds trust with its users.