Voltcraft ET-05 Earth Resistance Tester VC-17655920 – Precision Resistance Measurement 0-1999 Ω IP40

When electrical systems fail or safety checks are due, unreliable earth resistance measurements can lead to dangerous grounding faults, equipment damage, or even electrical shock. The Voltcraft ET-05 Earth Resistance Tester VC-17655920 solves this by providing precise, dependable measurements across three ranges up to 1999 Ω, ensuring your grounding systems meet safety standards. Its 3-pole measurement method and CAT III 300V safety rating make it a trusted tool for electricians, maintenance technicians, and inspectors working on residential, commercial, or industrial installations.

Who is it for

This tester is ideal for professionals who need to verify earth electrode resistance and soil resistivity. Electricians, facility managers, and safety inspectors will appreciate its rugged IP40-rated housing, clear backlit display, and simple operation. Whether you're commissioning new installations, performing routine maintenance, or troubleshooting grounding issues, the ET-05 delivers accurate readings without complexity.

Main features

• Three earth resistance ranges: 0-19.99 Ω, 0-199.9 Ω, and 0-1999 Ω with 0.01 Ω resolution for fine measurements.
• Earth voltage measurement up to 199.9 V AC to detect stray voltages before testing.
• 3-pole measurement method for accurate earth resistance readings.
• Large 3½-digit LCD with backlight for clear visibility in dim environments.
• Data hold function freezes readings for convenient recording.
• Low battery indicator ensures you never get caught without power.
• CAT III 300V safety rating and IP40 ingress protection for reliable field use.
• Powered by six AA batteries (included) for long operating life.

Specifications

• Earth resistance ranges: 0-19.99 Ω, 0-199.9 Ω, 0-1999 Ω
• Earth resistance accuracy: ±(2% + 3 digits)
• Earth voltage range: 0-199.9 V AC
• Earth voltage accuracy: ±(2% + 3 digits)
• Test current: 2 mA
• Test frequency: 820 Hz
• Measurement method: 3-pole
• Display: 3½-digit LCD with backlight
• Power supply: 6x 1.5V AA batteries
• Safety rating: CAT III 300V
• Ingress protection: IP40
• Operating temperature: 0 to 40 °C
• Included accessories: test leads, 2 earth spikes, carrying case, batteries

Tips

For accurate earth resistance measurements, ensure the earth spikes are driven deep into moist soil and spaced according to the 62% method. Always check for earth voltage before connecting the tester to avoid damage. Use the data hold function to capture readings in hard-to-reach locations, and replace all six batteries when the low battery indicator appears to maintain accuracy.