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Handheld clamp meter with grey body, red clamp jaws, digital display and six-button keypad

ETCR

ETCR 2100C+ Clamp Earth Ground Resistance Tester

SKU CH-D871-ZWSE9

Clamp tester measures loop ground resistance 0.010–1200 Ω and current 0.00–20.0 A with 32 mm jaw and 99-record storage

  • Measures loop resistance without disconnecting leads or auxiliary electrodes
  • Detects ground faults undetectable by traditional testing methods
  • Wide resistance range 0.010 to 1200 with 0.001 resolution
  • Current measurement 0.00 mA to 20.0 A with 0.05 mA resolution
  • Stores up to 99 measurement records for later review

ETCR 2100C+ Clamp Tester

The ETCR 2100C+ is a digital clamp meter for measuring earth ground resistance and leakage current in loop systems. It suits electricians and technicians working in power, telecoms, oilfields, construction and industrial maintenance. The instrument measures combined grounding body and lead resistance without disconnecting down leads or driving auxiliary electrodes.

Installation and common issues

Open the 32 mm clamp jaws around the grounding conductor and read the loop resistance directly; no test leads or stakes are required. The six-button panel and instant start-up make operation straightforward. Errors occur if users attempt single-point grounding measurements, which the tester cannot perform, or if an artificial loop is not created near the electrode when needed. Interference signals trigger audible and visual alarms.

Who should buy and who should not

Buyers needing fast, non-intrusive loop resistance checks on live systems with 99-record data storage will benefit. It is not for users who must measure isolated ground rods without a return path, verify single-point earth electrodes, or test installations where no conductive loop can be formed around the conductor.

How it compares

Measured against everything we stock in Meters, Testers & Measuring Tools, at today’s prices. Recalculated every night.

Price $302.99
Pricier than about 83% of the 3,030 comparable items (median $54.99).

Specifications

Product
Part numberETCR2100C+

Questions about this item

How can I verify the ETCR 2100C+ is working correctly after turning it on?

Run the upgraded relay self-test mode; the advanced processing algorithms will confirm internal circuitry is functioning before you begin measurements.

What comes with the ETCR 2100C+ and what must I purchase separately?

The tester includes the clamp meter with 32 mm jaw, six-button control panel, audible and visual alarms, and storage for 99 records; auxiliary electrodes are not required for loop measurements.

Which measurement range should I rely on for ground resistance versus leakage current?

Use the 0.010–1200 Ω range with 0.001 Ω resolution for ground resistance and the 0.00 mA–20.0 A range with 0.05 mA resolution for leakage current.

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