The EXTECH 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. Complete with test leads with alligator clips, 4 auxiliary earth bars, hard carrying case, and eight 1.5V AA batteries.
GENERAL SPECIFICATIONS
- 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
ADDITIONAL DETAILS
- Certifications - CE
- Dimensions - 9.8 × 7.8 × 4.3" (250 × 190 × 110mm)
- Power - 8 × AA (1.5V) batteries
- Safety Category - CATIV - 300V
- Warranty2 years
- Weight - 3.15lbs (1430g)
