Ground resistance measurements down to 0.025Ω with 0.002Ω maximum resolution True RMS AC Leakage current range of 0.2mA to 30A with 1.000mA maximum resolution Programmable Datalogging with 116 data points Programmable Hi/Lo Alarm 0.9 Jaw Size for Large Ground Rods Simplifies ground resistance measurements on multiple point ground systems Verification resistors confirm accuracy of meter Automatic Self Calibration when powered on 9999 Count High Contrast LCD Display Electrical Noise Detection feature prevents inaccurate readings Data Hold and Continuity Beeper > Each Unit Includes NIST Certificate 9V battery Resistance check plate Carrying case