Extech
Extech GRT300 – 4-Wire Earth Ground Resistance Tester
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- Usually ships in 3 business days
Description
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. 5V AA batteries.
- 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.
| Model | Extech GRT300 |
| Earth Ground Resistance | 2Ω/20Ω/200Ω/2000Ω |
| Earth Ground Resistance Basic Accuracy | ±(2% of reading + 3 digits) |
| Earth Ground Resistance Max Resolution | 0.01Ω/0.1Ω/1Ω/0.01kΩ |
| Earth Voltage | 0 to 300VAC (40 to 500Hz frequency) |
| Earth Voltage Basic Accuracy | ±(2% of reading + 3 digits) |
| Test Current | <2mA |
| Test Frequency | 820Hz |
| Certifications | CE |
| Dimensions | 9.8 × 7.8 × 4.3" (250 × 190 × 110mm) |
| Power | 8 × AA (1.5V) batteries |
| Safety Category | CATIV - 300V |
| Warranty | 2 years |
| Weight | 3.15lbs (1430g) |
| Included | Complete with test leads with alligator clips, 4 auxiliary earth bars, hard carrying case, and eight 1. |
Specifications are subject to manufacturer updates. Refer to current Extech product documentation for complete operating, safety and maintenance requirements.
Extech Limited Warranty
The Extech GRT300 is covered by Extech's standard limited warranty for this product. Register your product with Extech promptly after purchase to activate full coverage.
Warranty term, eligibility, registration requirements, exclusions, and coverage are subject to Extech's complete warranty terms for this model.