Specifications:
Type: DY4100A, DY4100B (optional)
Ground Resistance Testing :
At 2Ω: 0.03-2.000Ω (0.001Ω resolution)
At 20Ω: 0.03-20.00Ω (0.01Ω resolution)
At 200Ω: 0.3-200.0Ω (0.1Ω resolution)
At 2000Ω: 3-2000Ω (1Ω resolution)

Soil Resistivity Testing (Only DY4100B):
At 2Ω: 0.2-376.8Ω.m
At 20Ω: 0.2-3768Ω
At 200Ω: 0.002-37.68Ω
At 2000Ω: 0.02-376.8Ω
Ground vole testing : 0-600VAC
Photovoltaic vole testing : -1500V~1500V
Battery: 6 * AA battery (not included)

Package List:
DY-4100A:
1 * Ground Resistance Tester
1 * Storage Bag
1 * User Manual
2 * Set of Test Cable
2 * Ground Rods

DY-4100B:
1 * Ground Resistance Tester
1 * Storage Bag
1 * User Manual
2 * Set of Test Cable
4 * Ground Rods