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 percent -90 percent LCD Display: 4 digit LCD digital display. Storage Groups: 500 groupsProtection Level: Double InsulationStructural Features: Jaw MethodRanging: AutomaticExternal Magnetic Field: andlt 40a or MExternal Electric Field: andlt 1V or mSingle Measurement Time: 0.5 SecondsResistance Measurement Frequency: andgt 1kHzMaximum Resolution for Resistance Measurement: 0.001 Resistance Measurement Range: 0.01-500 Current Measurement Range: 0-20A, Type C. Tested Current Frequency: 50 or 60Hz.Package List:1 x Digital Ground Resistance Meter1 x Accessory1 x Storage Box