- Top "primary supply level" safety class rating for voltage detectors
- 70 to 1000 VAC, 50/60 Hz (when in contact with an IV 2 mm^2 or equivalent insulated wire)
- CAT IV 1000 V design meets CE Mark qualifications
- Continuously indicate battery status with green indicator lamp
- Both visual and audible voltage detection indication
- Automatic power switching prevents battery discharge
The Hioki 3120 is a non-metallic contact voltage detector with a power switch that also gives a clear indication of the battery state with a green LED. When voltage is detected, the LED lights red along with an audio signal.