Fluke t90 t110 t130 and t150 two pole voltage and continuity testers fluke fluke t90 the fluke t90 is ideal for any electrician it is a two pole voltage tester featuring a measurement range of 12v up to 690v the meter has a backlit led indicator to show the detected voltage level and audible and visual feedback for continuitythe fluke t90 is a rugged high quality tester and it is simple to use and comes with probe tip protection as standard the tester can also be used to indicate polar