This is conventional type 3 ½ digit LCD display which can measure Earth Resistance, Soil Resistivity & Earth Voltage .It has a unique RSR technology in which even at the drop of battery voltage the measurement reading remain constant . This meter has rechargeable long life battery which reduces the cost of battery. It has 128Hz test frequency which eliminates the harmonics interference. Earth resistance is measured by three wires & Soil Resistivity is measured by four wire measurement techniques. This meter is shock proof & drop dust proof ABS casing for heavy duty. This meter is Type tested as per IS 9223.