My Account

Log in to Your Account

Not a member yet? It's FREE!

Join

Why Join? Gain access to exclusive pricing, rewards and more!

Member Pricing & Rewards active

(877) 571-7901

Sales@TEquipment.NET

()

Shop By Category
Top Categories
Clamp Meters
Datacom and Networking Products
Dataloggers Data Acquisition
Signal Generators / Counters
Ground Testers
HVAC Equipment and Instruments
Life Sciences Equipment
Megohmmeter / Insulation Resistance Testers
Microscopes
Multimeters
Oscilloscopes
Power Measurement
Power Supplies
Process / Calibration
RF, Microwave, EMI
Safety Testing / Surge Testing
Soldering Equipment
Thermal Imagers
Shop All Categories
Empower your diagnostics with this compact, shock-resistant three-phase analyzer that boasts 2GB memory, capturing trends, transients, and Inrush currents effortlessly for precise power quality insights.SHOP NOW

The SDS1000X HD series, based on 2 GSa/s, 12-bit Analog-Digital Converters, utilizes Siglent’s SPO technology with a maximum waveform capture rate of up to 120,000 wfm/s.SHOP NOW

Everything at a glance, in your hand. Fast measurement and easy operation via large graphic display and your smartphone – yet extremely compact and rugged.SHOP NOW
Brands
- Rigol
- Megger
- Hioki
- Hakko
- Extech
- Instek
- Weller
- AEMC Instruments
- Bacharach
- Dranetz
- Emerson
- Greenlee
- JBC
- Vitrek
- View All Brands
Promotions
Clearance

Member Price INACTIVE
Create a FREE Account to Unlock Your Savings
Member Price ACTIVE

Extech GRT300 - 4-Wire Earth Ground Resistance Tester

Name: Extech GRT300 - 4-Wire Earth Ground Resistance Tester
Brand: Extech
SKU: ExtechGRT300
Price: 773.41 USD
Availability: InStock
Rating: 5.00 (1 reviews)

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

Compare

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

View Product Details

List Price: $869.00

Your Price: $773.41

Sign-in for EDU Pricing!

In Stock:

Free shipping over $99
Please note, FREE SHIPPING is only available on items that can ship via standard ground shipping and is only valid within the Contiguous United States. Any items that must ship via freight or to any destination outside of the Contiguous United States will be excluded.
View Payment Options

Request Quote

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

Recommended for you

Extech GRT300 Accessories

Choose a Category

General Accessories

for the Extech GRT300

Extech 382153 REPLACEMENT EARTH BAR 2-PACK SET

Catalog: 382153

(0)

In Stock!

Add to Cart

Description

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.

In The Box

Manuals/Guides

Manufacturer Specs

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

Extech GRT300 Product Reviews

5

Out of 5

Average Customer Review

Share your thoughts with other customers

Write a Review

Displaying 1 review

Most Helpful First | Newest First

Recommend to a Friend

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 I found this helpful (0)

Add to cart

Compare

Real people, here to help you.

Get Connected

Join the community and find out what we're up to, experience live product releases, webinars and more!

How Can We Help You?

Questions?

Log in to Your Account

Not a member yet? It's FREE!

Top Categories

Extech GRT300 - 4-Wire Earth Ground Resistance Tester

Items in This Series

Recommended for you

Extech GRT300 Accessories

for the Extech GRT300

Extech 382153 REPLACEMENT EARTH BAR 2-PACK SET

Description

Extech GRT300

4-Wire Earth Ground Resistance Tester

In The Box

Manuals/Guides

Manufacturer Specs

Tech Specs

Ground Testers/3 Pole / 4 Pole Ground Testers Template

Test Equipment General Attributes

Extech GRT300 Product Reviews

5

Featured Review

We'd love to hear from you

Real people, here to help you.

Get Connected

My Account

Promotions & Offers

Resources

Company