UUT UUT is short for Unit Under Test. In Metrology.NET the UUT is the device being calibrated or tested. It can also be understood as DUT -> Device Under Test TI -> Test Instrument By mschwartz@callabsolutions.com | January 19, 2019 | No Comments | ← TestProcess.Measure.Resistance TestProcess.Measure.Current.AC.Sinewave → Leave a Reply Cancel replyYou must be logged in to post a comment.