Insulation and continuity tester. Ideal for testing transformers, motors, generators, switchgear and panel buildings. Also suitable for domestic appliances, power tools and fixed electrical wiring systems. Features 500V insulation tester, auto ranging, auto discharge and continuity testing at 200mA down to 0.01. With live circuit voltage display, automatic continuity testing that leaves both hands free and an automatic voltage detection avoids accidental contact with live contacts. CAT III 600V 500V Insulation Tester Down to 0.01Continuity Testing 1000MResistance Real-Time Read-Out Peak Detection Bar Graph & Audible & Visual Alerts LCD Display Auto Discharge Live Circuit Voltage Display Auto Power Off in 10 Minutes CAT III 600V 500V Insulation Tester Down to 0.01Continuity Testing 1000MResistance Real-Time Read-Out Peak Detection Bar Graph & Audible & Visual Alerts LCD Display Auto Discharge Live Circuit Voltage Display Auto Power Off in 10 Minutes