EXTECH Clamp On Earth Resistance Tester: 0.03 ohm to 1,500 ohm, CAT II 600V/CAT III 300V
The EXTECH Clamp On Earth Resistance Tester (MPN 382357) is a handheld earth resistance tester that measures from 0.03 ohm to 1,500 ohm. It is a digital instrument rated CAT II 600V and CAT III 300V. The IP rating is…
SKU 3G-OTH-173603
Need installation or engineering help?
Ask a question
Product Description
The EXTECH Clamp On Earth Resistance Tester (MPN 382357) is a handheld earth resistance tester that measures from 0.03 ohm to 1,500 ohm. It is a digital instrument rated CAT II 600V and CAT III 300V. The IP rating is not rated.
Frequently Asked Questions
What is the EXTECH Clamp On Earth Resistance Tester used for?
The EXTECH Clamp On Earth Resistance Tester (MPN 382357) measures ground resistance from 0.03 ohm to 1,500 ohm without auxiliary rods. It is used by plant engineers and maintenance technicians for grounding system testing in industrial, utility, and telecom applications.
What are the specifications of the EXTECH 382357 earth resistance tester?
The EXTECH 382357 is a digital clamp-on tester with a measurement range of 0.03 ohm to 1,500 ohm. It is rated CAT II 600V and CAT III 300V. The IP rating is not rated. It is a handheld instrument from EXTECH, part number 382357.
Where to buy the EXTECH Clamp On Earth Resistance Tester worldwide?
3G Electric supplies the EXTECH Clamp On Earth Resistance Tester (382357) to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this digital earth resistance tester.
How to use the EXTECH clamp-on earth resistance tester for grounding tests?
To use the EXTECH 382357, clamp the jaws around the ground conductor or rod. The tester measures resistance without disconnecting the ground. Ensure the conductor is within the jaw opening and follow EXTECH’s manual for safe operation at CAT II 600V or CAT III 300V.
Used in
Common applications for EXTECHEXTECH Products
3G Electric supplies EXTECH handheld earth resistance testers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.







