Features:Performance at affordabilityTouch Built for onsite testingCalibration Certificate with InstrumentUser selectable Earth resistance measurement.Specifications:EARTH RESISTANCE RANGERange : 20Ohm, 200Ohm, 2000EhmResolution : 0.01Ohm @20Ohm range, 1Ohm @ 2000Ohm rangeAccuracy : 20Ohm: (2 % of rdg + 5 digits) 200Ohm: (2 % of rdg + 5 digits) 2000Ohm: (2 % of rdg + 5 digits)TESTING PARAMETERSTest Frequency : 128Hz (0.5Hz)Test current infection Resistance Range Current Infected Accuracy 20Ohm 10mA AC +/-10% 200Ohm 1mA AC +/-10% 2000Ohm 100A AC +/-10% OVERLOAD PROTECTIONOverload Protection : 230V AC (For 1min.)POWER SUPPLY Battery : 6 X 1.5V AA Alkaline cells (IEC LR6)Low Battery Indication : LO BAT is displayed below 6.5 V approxLCD DISPLAYDisplay : 3 Digit Custom Built LCD DisplayTest On : Push TEST ButtonENVIRONMENTAL SPECIFICATIONOperating Temperature : 0C to 55CStorage Temperature : -20C to 55CRelative Humidity : Less than 95% RH, non condensing max at 400CPHYSICAL SPECIFICATIONSEnclosure material : ABSDimensions : 175mm (H) X 85mm (W) X 41mm (D)Gross Weight : 457gm (With Battery)STANDARD ACCESSORIESInstruction Manual, Batteries 1.5V AA Alkaline (IEC R6), carton, carrying caseOPTIONAL ACCESSORIESClaw Hammer with Tubular handle, Spikes (2 nos.), Test leads (spool) set, carrying case for earth test kitAVAILABLE IN THREE VARIANTSDIGITAL EARTH TESTER MET-10DIGITAL EARTH TESTER MET-10 with kit (25 cm spike)DIGITAL EARTH TESTER MET-10 with kit (45 cm spike)ACCURACYAccuracy is specified as % of reading + digit and is valid at 25C 3C, 55% RH 10%.Accuracy is valid from 10% of the range to 95% of the rangeTemp. Coefficient = + (0.2% of the range) per degree centigrade referred to 25C.Accuracy is not valid if display shows LO BAT. In this case immediately replace the batteries.It is recommended that calibration equipment used to verify the accuracy of the instrument should be 10 times more accurate.It is recommended to recalibrate the instrument once in year.