Earth Resistance is the resistance of soil to the passage of electric current. Actually, the earth is a relatively poor conductor of electricity compared to normal conductors like copper wire. But, if the area of a path for current is large enough, resistance can be quite low and the earth can be a good conductor. It is the earths abundance and availability that make it an indispensible component of a properly functioning electrical system. Earth resistance is measured in two ways for two important fields of use:

1. Determining effectiveness of “ground” grids and connections that are used with electrical systems to protect personnel and equipment.

2. Prospecting for good (low resistance) “ground” locations, or obtaining measured resistance values that can give specific information about what lies some distance below the earth’s surface (such as depth to bed rock).

Features Digital Earth Resistance Tester

  • 4 wires earth measurement
  • Soil Resistivity measurement
  • Conductor resistance measurement
  • 3 ½ Digit LCD Display
  • Rechargeable NICD Batteries
  • Earth Ground Resistance 20/200/2000Ω
  • Resolution 0.1Ω
  • Soil resistivity yes
  • Charging LED Indicator yes
  • Low Battery Warning yes
  • Power Source AA1.2Vx9 rechargeable
  • Size 165 x 50 x 95 mm
  • Weight approx. 750g