Motwane company manufactures latest portable, heavy-duty and rugged det 20 digital earth and soil resistivity tester. These digital earth testers are available with salient features like powered with rechargeable battery pack and are specially meant for maintenance professionals and contractors. The digital earth testers uses 0.01 ohm to 1999 ohms earth resistance with selectable 20 ohms, 200 ohms and 2000 ohms to 10 ma ac rms test current ranges and less than 40v open-circuit voltage at 128 hz test frequency. This technical feature of the digital earth testers minimises the interference caused by 50hz power frequency or its harmonics.
