one key measurement operation, auto power off delay. Shutdown current is only 20nA, support for battery operation. Automatic detection PNP and NPN bipolar istor, N, P-channel MOSFET, JFET FET, diodes, two diodes, thyristors, resistors, capacitors, inductors. Automatic detection pin definitions. measuring the current amplification factor (B) of the bipolar istor and the turn-on voltage of the emitter junction (Uf). Darlington istor amplification factor can be identified by the high threshold voltage and high current. can detect bipolar istors and MOSFET's internal protection diodes and displayed on the screen. measuring the threshold voltage and the gate capacitance of the MOSFET.<br><br>Support two resistance measurements, the potential can be measured. If the potentiometer is adjusted to its end, the tester can not distinguish between the middle and the ends of the pin. resistance measurement resolution is 0.1 ohms, the maximum value of 50M ohms measurements. capacitance measurement range from 25pf to 100mF (100000 UF). Resolution up to 1 pF, inductance measurement range 0.01MH-20H, otherwise it will appear as a resistor, inductor DC resistance is higher than if Europe 2100 will also be displayed as a resistor. it can detect 2UF above capacitor equivalent series resistance, a resolution of 0.01 ohms. This feature is very important for the detection of the capacitor performance. it can display symbols of the two diodes in the right direction, also shows the forward voltage drop. LED detection for diode forward voltage drop higher than normal. Dual LEDs detected as double diode. Simultaneous detection of light-emitting diodes will flash. time for each test is about two seconds, only the large capacitance and inductance measurements will take a long time. Power Supply: 1 x 3.7V Lithium Battery(no including battery) Colour:As shown Material:PC+Metal<br><br>Package Contents:<br