Electrical Test
Earth Testing Kits
From quick 2/3-wire checks to full 4-wire and soil resistivity surveys.
Entry kit
2 / 3-wire
Earth V 0–200 V
ERT-10
Handheld earth resistance tester with large backlit LCD and 3 mA test current for RCD-safe checks.
Multi-method
2 / 3 / 4-wire
Soil resistivity
ERT-40R
Field kit with IP65 case, AFC interference rejection and wide resistance ranges for commissioning & surveys.
Advanced
2 / 3 / 4-wire + clamp
2000-set memory
ERT-50R
Professional earth tester with selection & double-clamp methods, soil resistivity, earth voltage and ground current.
Quick compare — Earth Testing Kits
Connection diagrams — 2 / 3 / 4‑wire
2‑wire (simplified)
Use when a quick check is sufficient and conditions are suitable.
3‑wire (precise)
Standard method for commissioning and verification.
4‑wire (guarded)
Use guarding where surface leakage affects measurements.
How to choose an Earth Testing Kit
For quick maintenance checks, a 2/3-wire tester with a large display and low test current covers the essentials.
For commissioning, surveys, or complex bonded systems, step up to 2/3/4-wire models with soil resistivity, and—where needed—selection/double-clamp methods, ground-current measurement, memory and software.