⚡ Ground your projects with precision and power!
The Extech GRT300 is a professional-grade earth ground resistance tester featuring 2, 3, and 4-wire testing modes, four selectable resistance ranges from 2 to 2000 Ohms, and a large dual-line LCD for clear readings. Powered by 8 included AA batteries, it offers ±0.5% measurement accuracy and automatic spike detection, making it an essential tool for electrical engineers and site managers ensuring safe and compliant grounding systems.
| Brand | Extech |
| Power Source | Battery Powered |
| Style | 4-Wire Earth Ground Resistance/Resistivity Tester |
| Color | Black |
| Item Weight | 1.43 Kilograms |
| Item dimensions L x W x H | 9.8 x 7.8 x 4.3 inches |
| Specification Met | CE |
| Measurement Type | Ohmmeter |
| UPC | 793950383018 |
| Manufacturer | Extech |
| Global Trade Identification Number | 00793950383018 |
| Part Number | GRT300 |
| Item Weight | 3.15 pounds |
| Product Dimensions | 9.8 x 7.8 x 4.3 inches |
| Country of Origin | Taiwan |
| Item model number | GRT300 |
| Batteries | 8 AA batteries required. (included) |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Number Of Pieces | 1 |
| Measurement Accuracy | +/-0.5% |
| Included Components | Test leads with alligator clips, 4 earth bars, case, 8 1.5V AA batteries |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
R**O
Excellent
Excellent
M**4
This product is a big scam
can not apply the method of Wenner of the 4 terminal measurement, though the meter has 4 terminal measurement, does not work if C1 and P1 are shorted. Finally it works like a 3 meter measuring terminals. It was a disappointment. The image output at amazon, the meter which shows the applicable methods is not true, the meter brings another image where C1 and P1 are shorted in the 4-terminal method of measurement.
Trustpilot
3 weeks ago
2 weeks ago
