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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 |
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Accessories
| Product |
Price |
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Extech 382153
Replacement Earth Bars (2pk) for GRT300
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$20.21
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