Using FieldSense Technology the T6-1000 measures voltage up to 1000 V ac through the open fork, without test lead contact to live voltage.+ Without opening covers or removing wire nuts. On wires up to AWG 4/0 (120 mm2), carrying as much as 200 A. Making measurement safer, faster and easier. Fluke T6 test equipment lets you check voltage, continuity and current with one compact tool. With the T6, all you have to do is select volts, ohms or current and the tester does the rest. OpenJaw current lets you check current up to 200 A without breaking the circuit. Its tough test leads stow neatly in the back of the tester. Features and Benefits: FieldSense technology for ac voltage, current and frequency measurement without making electrical contact to live voltage+. Simultaneous voltage and current display shows all power supply measurements at a glance for efficient trouble shooting for motors and other appliances. 1 to 1000 V ac or dc. 0.1 to 200 A ac. Resistance. 1 to 100 k.