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Extech GRT300
4-Wire Earth Ground Resistance Tester Kit
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Measure 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
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Extech GRT300 Shown
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The Extech GRT300 Earth Ground Resistance Tester Kit. 4-Wire Earth Ground Resistance Tester Kit includes all hardware necessary to measure earth ground in 4 ranges from 2 to 2000Ω. Features include: 4-wire, 3-wire, and 2-wire testing, Automatic C (current) spike check, Automatic P (potential) spike check, Test Hold function for easy operation, Automatic Zero adjustment, Data Hold, Auto Power Off, and AC Earth Voltage measurement.
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| Specification 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) |
| Power supply |
Eight 1.5V ‘AA’ Batteries |
| Dimensions |
9.8 x 7.8 x 4.3" (250 x 190 x 110mm) |
| Weight |
3.15lbs (1430g) (batteries included) |
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| Ordering Information |
| Model |
Description |
Buy Online |
Price |
| GRT300 |
Extech GRT300 4-Wire Earth Ground Resistance Tester. 4 ranges from 2 to 2000 Ohm |
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$999.00 |
| GRT300NISTL |
Extech GRT300NISTL 4-Wire Earth Ground Resistance Tester. 4 ranges from 2 to 2000 Ohm. Limited NIST for Certificate of Traceability to 4-wire mode only |
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$1,149.00 |
| Included Items |
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- 1 Set Test leads
- 4 Auxiliary earth bars
- 1 Hard carrying case
- 8 1.5V AA batteries
- 1 Manual
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Included |
| Optional Accessories |
| Model |
Description |
Buy Online |
Price |
| 382153 |
Extech 382153 Replacement Earth Bars (2 Pack) |
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$19.99 |
| 382154 |
Extech 382154 Test Leads for 382152 |
Discontinued
see: 382254 |
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