The meter is applicable to the testing of the earth resistance of the power supply wires, distribution wires inside a room, electrical equipment or appliance, which can done in two measurement modes: Bi-poles or Tri-poles, and it also can be used to measure the earth voltage.
Measurement method: Constant Current Conversion is used for the measurement of earth resistance, with the frequency of the testing current about 800HZ and the size about 3mA. Average rectification is used for the measurement of earth voltage.
Temperature and humidity for measurement 0~40℃，relative humidity under 85%
Temperature and humidity for keeping the meter -10~50℃, relative humidity under 85%
Battery: Six 1.5V AA batteries
Volume: 330 X 125 X 265
Supplied accessories: 3 test leads (one 15-meter-long red lead, one 10-meter-long green lead and one 5-meter-long black lead ) , 2 auxiliary earth bars