Extech 4-Wire Earth Ground Resistance Tester Kit
The Extech 4-Wire Earth Ground Resistance Tester Kit measures earth ground in 4 ranges from 2 to 2000Ω.
- 4-wire, 3-wire, and 2-wire testing
- Automatic I (current) spike check
- Automatic P (potential) spike check
|GRT300||4-Wire earth ground resistance tester kit|
|Usually ships in 1-2 weeks|
|GRT300-NISTL||4-Wire earth ground resistance tester kit, NISTL traceable|
|Usually ships in 1-2 weeks|
The Extech 4-Wire Earth Ground Resistance Tester Kit includes all the hardware necessary to measure earth ground in 4 ranges from 2 to 2000Ω. The kit includes 4-wire, 3-wire, and 2-wire testing. The large dual line LCD displays autoranging, automatic I (current) spike check, and an automatic P (potential) spike check.
- 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: 9.8x7.8x4.3" (250x190x110mm)
- Weight: 3.15lbs (1430g) (batteries included)
- (1) Earth ground resistance tester
- (4) Test leads with alligator clips
- (4) Auxiliary earth bars
- (8) 1.5V AA batteries
- (1) Hard carrying case
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