Multi-parameter Measurement: ST100 voltage test pen provides a full range of electrical measurements: AC&DC voltage/resistance/continuity/frequency/capacitance/live/diode/phase sequence.
Non-Contact Voltage Tester: Voltage can be detected by the NCV tester. Measuring voltage without touching wires largely avoids electric shock.
Buzzer and Indicator Bar: When voltage is detected, the buzzer and indicator bar are activated. The frequency of the warning tone and the color of the indicator light depends on the voltage level.
Smart Auto Mode: Running in Auto Mode, the electrical checker automatically identifies the voltage, resistance, and continuity being measured and displays the reading on the display.
Related Blog: How to Use Voltage Tester Pen