Feature:1. This measurement result is displayed immediately, and the response is fast and sensitive, without waiting.2. The size of the instrument is moderate, suitable for handheld work, effortless.3. Test wire of the digital resistance meter is regular, with good craftsmanship and reasonable design.4. Internal resistance tester is used to measure AC resistance and DC resistance, and the measurement is accurate.5. Suitable for cell phone, computer, electric vehicle and other battery maintenance, battery factory inspection and testing.Specification:Item Type: Internal Resistance TesterMaterial: ABSMeasurement Parameters: AC resistance, DC voltageBasic Accuracy:Resistance: 0.5%Voltage: 0.5%Measuring Range:Resistance: 0.0001m²~200ΩVoltage: 0.0001V~±100VDCSignal Source:Frequency: AC 1kHzCurrent: 2mΩ/20mΩ range 50mA; 200mΩ/2Ω range 5mA; 20Ω/200Ω range 0.5mARange:Resistance: 6 ranges automatic and manualVoltage: 3 ranges automatic and manualTest Speed: 5 times/secCalibration: Resistance: each range is individually manually calibrated without affecting each otherVoltage: each range is individually and manually calibrated without affecting each otherFactory Setting: save the factory information, one key can restore the factory stateBacklight: Enter the setting menu to turn off and onEnergy Saving Setting: 30 minutes delay, automatic shutdown without any operationScope of Application: cell phone, computer, electric vehicle and other battery maintenance, battery factory inspection and testingDisplay Result: LCD display, direct readingPower Supply: built-in lithium battery, using 5V/1A charging (for mobile phone charger)Language: Chinese, English, can be switched