Do not measure elements when using. Discharge must be measured before capacitance measurement. Inadvertent measurement of components causes improper use. It can detect and replace the front-end protection Elements 1N4148 by itself. Please do not the earth, nor touch other objects L 0.05uh--2000h R 0.1 milliohm --20 trillion C 1p--20 micrometer 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 frequency: 100Hz, 1kHz,7.831kHz level: 1.75Vrms(max) Test Range R 0.0002 - 9.999 M C 0.1 pF - 10000uF or more L 0.01 H - 1000 H D,Q 0.001 - 9999 Operating temperature and humidity: 0C40C, 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 , the Philippines,Taiwan and so on. Voltage: AC100-240V Material: metal+plastic colour: as shown Package Contents: 1 x digital bridge Kit(A) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.