Please contact us if you have any questions about the product.【You are welcome to click on our store and hope to bring you a satisfying shopping experience！】Precautions Before testing the capacitor, be sure to discharge it first, otherwise the meter may be damaged. When using the adapter for power supply, use an adapter with a DC 9V-12V (including 9V, 12V) voltage range.·The instrument will not charge the battery. When the battery is lower than 6V, please replace the battery in time. When discharging a capacitor, it is possible to discharge without starting it.Technical indicatorsResistance: 0Ω-50MΩ Resolution: 0.01ΩCapacitance: 25pf-100mf Resolution: 1pfInductance: 0.01mH-20H Resolution: 0.01mHMeasuring capacitance ESR resolution: 0.01ΩInstructionsa. Press “Power On/Test” to realize the function of power on and one test. Press this button repeatedly for multiple tests; 20 seconds after the test, no operation will automatically shut down.b. This instrument provides three measurement methods: patch, plug-in and external meter. The 1, 2, and 3 feet of each method have the same correspondence.c. There is no need to distinguish the order of disciplines when placing the device. After the measurement is completed, the screen will display the device function corresponding to each pin.d. The back of the meter is printed with the ESR typical value reference table corresponding to the electrolytic capacitor. This table is for reference only. Please refer to the data published by each manufacturer.calibrationShort the 1, 2, 3 test points, press the “Power On/Test” button, the screen prompts whether to enter the calibration, press the “Power On/Test” button within 2 seconds to confirm and enter the calibration.After that, the screen prompts to disconnect the 1, 2, and 3 test points, and then disconn