Feature:1. Clamp Grounding Resistance Tester: Measure the resistance accurately and quickly with this high accuracy resistance meter with LCD display.2. Double Insulation for Safety: The clamp tester is designed with double insulation to ensure the safety of users during measurements.3. 500 Groups Memory: This tester can store up to 500 groups of measurement data, allowing you to easily follow and analyze the grounding resistance values.4. Wide Measurement Range: With a resistance measurement range of 0.01500 and a current measurement range of 020A, this tester is suitable for various applications.5. Fast and Efficient: The single measurement time is only 0.5 seconds, allowing you to complete your measurements quickly and efficiently.Specification:Item Type: Digital Ground Resistance MeterModel: ETCR2000XBattery: 4 x AA battery, shipped without battery. Working Temperature: -10-55Relative Humidity: 10% -90%LCD Display: 4 digit LCD digital display. Storage Groups: 500 groupsProtection Level: Double InsulationStructural Features: Jaw MethodRanging: AutomaticExternal Magnetic Field: <40a/MExternal Electric Field: <1V/mSingle Measurement Time: 0.5 SecondsResistance Measurement Frequency: >1kHzMaximum Resolution for Resistance Measurement: 0.001 Resistance Measurement Range: 0.01-500 Current Measurement Range: 0-20A, Type C. Tested Current Frequency: 50/60Hz.Package List:1 x Digital Ground Resistance Meter1 x Accessory1 x Storage Box