Description: Convenient: It can store 1000 groups of test results for further inquiry which is easy to query and analyze. Portable: The compact portable resistance tester is easy to use and stable in performance. Multifunctional: Multifunctional measurement of tripping current, tripping time, switching leakage circuit resistance, as well as on-line voltage, RCD (leakage switch), AUTORAMP (trigger current) voltage, frequency. Wide Application: Perfect suitable for electricians to test, inspect and repair. Specification: Color: As Shown Material: ABS Size: Approx.34x27x9cm/13.39x10.63x3.54 inch Voltage Measurement: 0~440V Frequency Measurement: DC, 45~65Hz Test Current Amplification: 0.5, 1, 5 Fast/Slow Current Test Gear: 10, 30, 100, 300, 500mA Safety Level: CAT III 1000V, CAT IV 600 Max Common-Mode Voltage: 600V AC RMS Display Type: LCD Display Range Selection: Fully Automatic Range Frequency Detection: Automatic Range Display: ">" Power Consumption: 100mW Working Temperature and Altitude: 0~40℃, 2000m Storage Temperature and Altitude: -20~70℃, 12000m Power Supply: 8*1.5V AA Battery (Not Included) Note: There might be a few color distortions due to different computer resolutions. There might be a slight error due to different hand measurements. Package Includes: 1 Piece Resistance Tester.