This digital insulation tester is needed for various measurements of wires, components, and their insulation. Using the rotary switch, the voltage required for insulation testing can be set. By pressing the test button, the set voltage is output, and the device or wire to be measured is checked. For the insulation measurement function, four voltage values can be selected to cover any type of test. Other features of the PeakTech 2695 include DC and AC voltage measurement as well as resistance measurement. To ensure safe operation, there is a lock button that prevents the device from outputting a voltage of up to 1000 V due to accidental button presses.