Extech 382357 Clamp on Ground Resistance Tester with Datalogging Enables non-contact measurements of ground conductors without need for auxiliary ground spikes

• Measurements down to 0.03Ohms with 0.02Ohms max resolution
• True RMS AC Leakage current range of 0.2mA to 15A
  with 0.001mA maximum resolution
• Programmable Datalogging with 116 data points
• Programmable Hi/Lo Alarm
• 0.9in 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
• Complete with 9V battery, Resistance
  check plate and carrying case