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4 (1 Review) | UPC: 793950383254 | Model: Extech GRT350-NIST
4-Wire Earth Ground Resistance/Resistivity Tester W/Ltd NIST- PLEASE NOTE: If not in stock: NIST calibration takes between 7-14 days once stock is available.
List Price: $1,199.00
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The GRT350 is a 4-wire earth ground resistance and resistivity tester which measures earth ground resistance from 2 to 2000 Ohm and resistivity from 0.06 to 628 ohm-m. The GRT350 supports 4-wire, 3-wire, and 2-wire testing. This tester has a large dual line LCD, automatic spike check, test hold function, auto ranging, data hold and auto power off. The GRT350 can also store and recall up to 200 test results, has over-range and low battery indications. Electricians and technicians should also check their ground system periodically for predictive maintenance ensuring the resistance level doesn't exceed the allowed safety level. The GRT350 has a CATIV 300V safety rating. That means it's designed for use with devices connected to raw voltage distribution lines and/or located outside (Pole Transformers, Service Drops, Overhead/Underground lines etc.). Maximum voltage rating of these devices shouldn't exceed 300V.
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4.0
This item is great if you don't require to collect statistics directly into the computer as offered by the more expensive model. It comes precalibrated directly from the manufacturer, which may take some time to do. For my specific case, this calibration took a couple of weeks longer than anticipated.
Verified Purchase Anonymous on Jun 16, 2018 I found this helpful (0)