We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Clamp earth resistance tester with 65mm by 32mm jaws, dark grey body, six-button panel, LCD screen

ETCR

ETCR ETCR2100+ Clamp Earth Resistance Tester 0.010~1200

SKU CH-356N-WTE0J

Measures loop grounding resistance from 0.010 to 1200 Ω without disconnecting leads, stores 99 readings, and fits 65×32 mm conductors

  • Loop resistance measured without disconnecting leads
  • Wide 0.010–1200 Ω range with 0.001 Ω resolution
  • Detects ground faults traditional methods cannot find
  • Stores 99 readings for later review
  • 65 × 32 mm clamp fits large conductors

Professional Ground Resistance Testing

The ETCR ETCR2100+ clamp earth resistance tester measures loop resistance from 0.010 to 1200 with 0.001 resolution. It operates without disconnecting grounding leads or driving auxiliary electrodes, making it suitable for power, meteorology, oilfield, construction and industrial electrical equipment where traditional fall-of-potential methods are impractical.

Suited For Loop Systems Only

This instrument is designed for electricians and engineers who need fast, non-intrusive checks on intact grounding loops. It stores up to 99 readings and provides audible and visual alarms for interference or out-of-range results. Buyers who must measure single-point electrodes without a return path, or who require a four-wire tester for soil resistivity surveys, should look at a different instrument class.

Clamp Jaw Defines Conductor Limit

The 65 by 32 millimetre jaw opening sets the maximum conductor or ground lead size that can be enclosed for a valid loop measurement. If the grounding conductor or busbar exceeds this aperture, the tester cannot close fully and will not produce a reading. Verify the target conductor dimensions before purchase.

Highlights

  • Loop resistance measured without disconnecting leads
  • Wide 0.010–1200 Ω range with 0.001 Ω resolution
  • Detects ground faults traditional methods cannot find
  • Stores 99 readings for later review
  • 65 × 32 mm clamp fits large conductors

Specifications

Part NumberETCR2100+

Questions about this item

What size grounding conductor will fit inside the 65 mm by 32 mm clamp jaws?

The clamp opening is 65 mm by 32 mm, so any round or flat conductor that fits within those dimensions can be measured without disconnecting the lead.

Can the tester measure a single ground rod that has no return path?

No, it measures loop resistance only; an artificial loop must be created near the electrode as described in the manual.

How do I confirm the instrument is reading correctly after power-on?

Use the upgraded relay self-test mode; the audible and visual alarms will sound if the internal check passes.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.