Fluke 2ac voltalert ac voltage detector fluke fluke 2ac the fluke 2ac voltalert 8482 voltage detector can detect voltages from 200 to 1000vac and is suitable for household commercial and industrial use ready every time through low power technology for extra long battery life supplied with 2 x aaa batteries and a user manual fluke 2ac voltalert voltage detector cat iv 1000 v