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Extech GRT300 - 4-Wire Earth Ground Resistance Tester

Name: Extech GRT300 - 4-Wire Earth Ground Resistance Tester
Brand: Extech
SKU: ExtechGRT300
Price: 773.93 USD
Availability: InStock
Rating: 5.00 (1 reviews)

5 (1 Review) | UPC: 793950383018 | Model: Extech GRT300

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4-Wire Earth Ground Resistance Tester Kit

4-wire, 3-wire, and 2-wire testing
Large dual line LCD
Automatic I (current) and P (potential) spike check
Test Hold function for easy operation
Autoranging, Automatic Zero adjustment, Data Hold and Auto Power off
AC Earth Voltage
Overrange and low battery indication
Limited Two Years Warranty

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Items in This Series



Product	Extech GRT300 4-Wire Earth Ground Resistance Tester Kit	Extech GRT300-NISTL 4-Wire Earth Ground Resistance Tester with Limited NIST
Price
In Stock
Type	4 Pole	4 Pole
Display (3 Pole Testers)	Digital	Digital
Ground Resistance Range	2000 Ohms (2 K Ohms)	2000 Ohms (2 K Ohms)
Compare	Add to compare	Add to compare

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Extech GRT300

Earth Ground Resistance ranges: 2Ω/20Ω/ 200Ω/2000Ω
Basic Accuracy: ±(2%rdg+3d)
Resolution: 0.01Ω/ 0.1Ω/1Ω/0.01kΩ
Test Current / Frequency: <2mA / 820Hz
AC Earth Voltage / Frequency: 0 to 300VAC / 40 to 500Hz
Accuracy: ±(2%rdg+3d)

4-Wire Earth Ground Resistance Tester

Measures earth ground resistance in 4 ranges from 2 to 2000 Ohm

The GRT300 measures earth ground in 4 ranges from 2 to 2000 Ohm. 4-wire, 3-wire, and 2-wire testing. Large dual line LCD. Automatic I (current) and P (potential) spike check. Test Hold function for easy operation. Autoranging, Automatic Zero adjustment, Data Hold and Auto Power off. AC Earth Voltage. Overrange and low battery indication.

General Specification
Earth Ground Resistance ranges	2Ω/20Ω/200Ω/2000Ω
Basic Accuracy	±(2% rdg + 3d)
Resolution	0.01Ω/0.1Ω/1Ω/0.01kΩ
Test Current/Frequency	<2mA/820Hz
AC Earth Voltage/Frequency	0 to 300VAC/40 to 500Hz
Accuracy	±(2% rdg + 3d)
Power Supply	Eight 1.5V 'AA' Batteries
Dimensions	9.8 x 7.8 x 4.3" (250 x 190 x 110mm)
Weight	3.15 lbs (1430g) (batteries included)

Tech Specs

Ground Testers/3 Pole / 4 Pole Ground Testers Template
Type	4 Pole
Display (3 Pole Testers)	Digital
Ground Resistance Range	2000 Ohms (2 K Ohms)
Operating Frequency	820 Hz
Accuracy	±(2%rdg+3d)
Measuring Current	2 mA
Measuring Voltage	300 V
Measuring Frequency	820 Hz
Soil Resistivity	No
Stakeless Capability	No
CAT Rating	IV
CAT Voltage	300 V
Optional Ground Kit Included	No
Auto Ranging	Yes
Test Equipment General Attributes
Unique Features	4-wire, 3-wire, and 2-wire testing Large dual line LCD Automatic I (current) and P (potential) spike check Test Hold function for easy operation Autoranging, Automatic Zero adjustment, Data Hold and Auto Power off AC Earth Voltage Overrange and low battery indication Complete with test leads with alligator clips, 4 auxiliary earth bars, hard carrying case, and eight 1.5V AA batteries
Warranty	2 YEARS
Warranty Details	Limited Two Years Warranty
Safety Approval	CE
Product Weight	3.15 LBS
Product Height	4.33 IN
Product Length	9.84 IN
Product Width	7.8 IN
Calibration Included	Factory Calibration
Battery Type	AA Battery Type eight 1.5V AA batteries
Power Supply Voltage	Battery Powered
Country of Origin	Taiwan
Shipping Height	6.50 IN
Shipping Length	15.00 IN
Shipping Width	11.75 IN

5

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Extech GRT300

5.0

The Extech GRT300 kit is a must-have for any professional and allows testing of earth ground across four resistance ranges of 2O, 20O, 200O and 2kO. I use this kit to check the ground resistivity of soils out on mountain tops for the Department of Interiors Bureau of Land Management existing and new radio communications facility. I highly recommend the Extech GRT300 if you want accurate readings.

Charles Robert GaNun on Jun 16, 2020

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Extech GRT300 - 4-Wire Earth Ground Resistance Tester

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Extech GRT300

4-Wire Earth Ground Resistance Tester

Tech Specs

Ground Testers/3 Pole / 4 Pole Ground Testers Template

Test Equipment General Attributes

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