The Ermenrich Zing WT20 is a non-contact AC voltage tester. It can be used to check broken wires, detect voltage on exposed conductive parts, and test sockets. The tool is useful in the professional work of electricians and in home troubleshooting.

The device works with two conventional batteries. When voltage is detected, the tester will flash and beep. The flashlight has a separate power button.

Main features:

- Non-contact detection of voltage
- Sound and light signal, non-contact detection method
- Flashlight (works with traditional batteries)
- For home and professional use

- Package dimensions (LxWxH): 17x4x3 cm
- Shipping weight 0.055 kg
- Non-contact voltage detection (NCV detection) ✓
- Frequency range, Hz 50–60
- Operating voltage range (AC), V 60 — 1000
- Maximum voltage, V 1000
- Overvoltage category IV
- Warning tone ✓
- Light signal ✓
- Safety standards UL 61010-1& CAN/CSA-C22.2 NO. 61010-1; UL 61010-2-030& CAN/CSA-C22.2 NO. 61010-2-030-12; EN 61326-1:2013
- Operating humidity range, % 0 — 75
- Operating temperature range, °C -10...+50
- Storage temperature range (°C) −10 … +50
- Power supply 2 AAA batteries (not included in the set)
- Low battery indicator light ✓
- Frame high-strength ABS plastic