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GRT300 4-Wire Earth Ground Resistance Tester
Brand: ExtechThe 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.
Over range and low battery indication.
Complete with test leads with alligator clips, 4 auxiliary earth bars, hard carrying case, and eight 1.5V AA batteries.
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.
- Over range and low battery indication.
- Complete with test leads with alligator clips, 4 auxiliary earth bars, hard carrying case, and eight 1.5V AA batteries.
Specifications
Brand
AC Earth Voltage / Frequency
- 0 to 300 Vac / 40 to 500 Hz
Accuracy
- ± (2 % of Reading + 3d)
Basic Accuracy
- ± (2 % of Reading + 3d)
Dimensions
- 9.8 x 7.8 x 4.3” (250 x 190 x 110 mm)
Earth Ground Resistance Ranges
- 2 Ω / 20 Ω / 200 Ω / 2000 Ω
Power Supply
- Eight 1.5 V 'AA' Batteries
Resolution
- 0.01 Ω / 0.1 Ω / 1 Ω / 0.01 KΩ
Test Current / Frequency
- < 2 mA / 820 Hz
Weight
- 3.15 lbs (1430 g) (Batteries Included)