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Extech GRT300
Catalog #: GRT300
4-Wire Earth Ground Resistance Tester 4 Ranges from 2 to 2000 Ohm

  • Overview
  • Specifications
  • Summary
  • Accessories

Product Highlights

  • 4-wire, 3-wire, and 2-wire testing
  • 4-wire, 3-wire, and 2-wire testing
  • 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

Each Unit Includes

  • 1 - Set of Test Leads With Alligator Clips
  • 4 - Auxiliary Earth Bars
  • 1 - Hard Carrying Case
  • 8 - 1.5V AA Batteries

 

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)

 

Ground Testers/3 Pole / 4 Pole Ground Testers Template
Type 4 Pole
Display 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  No
Auto Ranging Yes
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 1 YEARS
Safety Approval CE
Product Weight 1430 GRAMS (3.15 LBS)
Product Height 4.33 IN
Product Length 9.84 IN 
Product Width 7.5 IN
Calibration Included Factory Calibration
Battery Type AA 
Power Supply Voltage Battery Powered
Country of Origin Taiwan
Shipping Height 6.50 IN
Shipping Length 15.00 IN
Shipping Width 11.75 IN
MEMBER PRICE: INACTIVE
List price:   $819.21
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  • Catalog #: GRT300 4-Wire Earth Ground Resistance Tester 4 Ranges from 2 to 2000 Ohm

    $819.21
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