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. Automatically detects NPN and PNP-transistors, FET, diodes, dual diode, thyristor, automatic identification of the transistor pinout. Test NPN and PNP-transistor common-emitter current amplification factor, the base-emitter threshold voltage, off the-collector emitter-leakage current. 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.Can be used as signal generator and frequency meter: frequency range from 1Hz-2MHz and can generate 1%-99% PWM(pulse width modulation) signals. Specifications: Material:Electronic Component Size: As Picture Shown Display: 160x128 LCD Power:DC5V Current: Approx. 30mA Resistance-Measurement:-Max. 50M Resistance-Resolution: 0.01 Capacitance Measurement: 25pF~100mF Capacitance Resolution: 1pF DCVoltage Measurement: Up to 50V Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings. Package includes: 1x Transistor Tester