T6-600 electrical tester features FieldSense technology for ac voltage, current and frequency measurement without making electrical contact to live voltage* Voltage and current display – shows all power supply measurements at a glance for efficient trouble shooting 1 to 600 V ac or dc 0 to 200 A ac True-rms voltage and current Resistance 1 ? to 100 k? Frequency measurement 45 Hz to 66 Hz Works with wires up to AWG 4/0 (120 mm2) with a 17.8 mm jaw opening HOLD button temporarily freezes the reading for easy viewing Easy to read display with backlight Accepts optional Fluke TPAK Magnetic Meter Hanger for convenient operation Standard two-year warranty; extendable to-year warranty; extendable to-year warranty; extendable to-year warranty; extendable to-year warranty; extendable to-year warranty; extendable to-year warranty; extendable to 4 years through product registration within 45 days of purchase+