Features:Digital LCD display for easy readings, can display measured data and graphics.Rotary switch control, a key measurement for convenient use.Main chip is the DIP, easy for electronic enthusiasts to DIY or update the main chip.Use 9V battery(not included), can also use DC power(DC 6.8-12V).Automatic shutdown, shutdown current is only about 20nA.Automaticallydetects NPN and PNP transistors, FET, diodes, dual diode, thyristor,SCR, automatic identification of the transistor pinout.Test NPN andPNP transistor common-emitter current amplification factor, thebase-emitter threshold voltage, off the collector - emitter leakagecurrent.Support 2 resistors measurement, show its positive and negative, on-state voltage.Resistance measurement maximum resolution 0.01, can be measured up to 50M.Automatically test the pins of a component and show on the display.Measure FET gate threshold voltage and gate capacitance.For the following 2100 resistor while measuring its inductance measuring range from 0.01mH - 20H.Canbe used as signal generator and frequency meter: frequency range from1Hz-2MHz and can generate 1%-99% PWM(pulse width modulation) signals.Notice:Before measuring capacitance, the capacitor must be discharged, otherwise very likely damage the meter.Specifications:Display: 160*128 LCDPower Supply: 1 * 9V Battery(not included); DC 6.8-12VCurrent: Approx. 30mAResistance Measurement: Max. 50MResistance Resolution: 0.01Capacitance Measurement: 25pF~100mFCapacitance Resolution: 1pFDC Voltage Measurement: Up to 50VScreen Size: 3.7 * 3cm / 1.45 * 1.18inPCB Size: 7.8 * 6.2cm / 3.1 * 2.44inProduct Weight: 66g / 2.3ozPackage Weight: 69g / 2.45ozPackage List:1 * Transistor Tester