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Red handheld tester with two large clamps and digital display

ETCR

ETCR 3200 Double Clamp Grounding Resistance Tester

SKU CH-NGHS-8STSH

Measures earth resistance via double-clamp, 2/3/4-wire and selection methods up to 30.00 kΩ, plus soil resistivity, earth voltage and AC current to 600 A

  • Labor warranty1 Year
  • Product typeTest Equipment
  • Color and finishRed
  • Number of items1 pack
  • Sold asBox
  • Parts warranty3 Years
  • Measures earth resistance from 0.01 Ω to 30.00 kΩ using five methods
  • Double-clamp technique reads grounding resistance 0.01 Ω to 100 Ω without auxiliary stakes
  • Soil resistivity range reaches 9000 kΩ·m for site surveys
  • Stores 2000 data sets with audible and visual alarm for threshold alerts
  • 68 mm clamp jaw fits large down-leads and measures AC current up to 600 A

ETCR 3200 Double Clamp Tester

The ETCR 3200 is a multi-function grounding resistance tester built for electricians and field engineers who need to verify earthing systems on site. It supports five measurement methods including the double-clamp technique for looped or mesh grounds where auxiliary stakes cannot be driven. The large 68 mm clamp jaw accommodates thick down-leads and busbars. Data logging stores up to 2000 reading sets for later review.

Measurement Ranges and Methods

Earth resistance is covered from 0.01 Ω to 30.00 kΩ across 2-wire, 3-wire, 4-wire, selection and double-clamp modes. Soil resistivity spans 0.01 Ω·m to 9000 kΩ·m. Earth voltage reads AC 0.1 V to 100.0 V, while AC current measurement reaches 0.01 mA to 600 A. An audible and visual alarm flags readings that exceed user-set thresholds.

Pre-Purchase Checks

Confirm the clamp jaw opening suits the largest conductor you must encircle. Verify that the expected earth resistance values fall within the 0.01 Ω to 30.00 kΩ span and that soil resistivity tests will not exceed 9000 kΩ·m. Ensure the AC current range up to 600 A covers the leakage currents you plan to measure. The tester requires no auxiliary stakes for the double-clamp method, but the 2/3/4-wire methods do need test electrodes.

How it compares

Measured against everything we stock in Electrical Trade Tools & Kits, at today’s prices. Recalculated every night.

Price $427.99
Pricier than about 90% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand nameETCR
Model name3200
Product typeTest Equipment
Color and finishRed
In the box
Number of items1 pack

Questions about this item

Should I choose the double-clamp method or the 4-wire method for my grounding tests?

Use the double-clamp method for quick checks up to 100 Ω without auxiliary electrodes; switch to the 4-wire method when you need the full 0.01 Ω to 30.00 kΩ range and higher accuracy on complex or mesh grounding systems.

What does the 30.00 kΩ upper range mean when I am on site?

It lets you measure high-resistance electrodes and soil resistivity up to 9000 kΩ·m in a single instrument, so you can verify both low-resistance substation grids and high-resistance lightning-protection earths without changing testers.

How does the 68 mm clamp jaw size limit what I can measure?

The 68 mm jaw accommodates large grounding down-leads and busbars, enabling double-clamp and AC current measurements up to 600 A on thick conductors that smaller clamps cannot encircle.

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