Do not measure charged elements when using. Discharge must be measured before capacitance measurement.   Inadvertent measurement of charged components causes improper use.   It can detect and replace the front-end protection Elements 1N4148 by itself.   Please do not pick up the earth, nor touch other charged objects    L 0.05uh--2000h R 0.1 milliohm --20 trillion C 1p--20 micrometer method   Fuction:   Test parameters: L,C,R,D,Q,ESR    Basic accuracy: 0.3%-0.5%    Equivalent circuit Series   Range Mode Auto   Test Speed: Fast: 2.5, medium : 2, Slow: 1 (times / sec.)    Calibration function: Auto   Test terminal configuration: The BNC test line   Display: 2004 LCD   Test signal   Test signal frequency: 100Hz, 1kHz,7.831kHz   Test signal level: 1.75Vrms(max)   Test Range   R 0.0002 Ω - 9.999 MΩ   C 0.1 pF - 10000uF or more   L 0.01 μH - 1000 H   D,Q 0.001 - 9999   Operating temperature and humidity: 0°C& 65293;40°C, ≤90%RH   Power voltage: AC110V or 220v to DC 9V    Frequency: 50Hz   Power consumption: ≤0.45W    Plug Type:US Plug,it applies to Canada, India,Mexico, Thailand, the United States, the Philippines,Taiwan and so on.   Voltage: AC100-240V   Material: metal+plastic   colour: as shown      Package Contents:   1 x digital bridge Kit(A)   /   1 x digital bridge Kit(B)   /   1 x digital bridge Kit(C)