Earth Ground Tester Bluetooth Compatible No CAT Safety Rating CAT IV 600V Calibration Certificate None Current Accuracy +/-1.5 Percent to +/-10 Percent Data Logger Yes Display Type Digital Dustproof No IP Rating Not Applicable Jaw Capacity 1.4 in Leakage Current Range 0.1mA to 40 A Maximum Earth Voltage 600 V AC Maximum Ground Resistance Measurement 1 500 ohm Measurement Connectors One Clamp Minimum Ground Resistance Measurement 0.01 ohm Number of Records Stored 300