Digital LCD display for easy readings, can display measured data and graphics.Rotary control, a key measurement for convenient use. Main chip is the DIP, easy for electronic enthusiasts to DIY or update the main chip. Feature - Color: As Shown. - Material: PCB+LCD. - Size: 8 x 6 x 1cm. - 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 . - 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 0.01Ω, can be measured up to 50MΩ. - Automatically test the of a component and show on the display. Measure FET gate threshold voltage and gate capacitance. - For the following 2100Ω resistor while measuring its inductance measuring range from 0.01mH - 20H. - Can be used as and frequency meter: frequency range from 1Hz-2MHz and can generate 1%- PWM(pulse width modulation) signals. - Note: Before measuring capacitance, the capacitor must be discharged, otherwise very likely damage the meter. Package list: 1 x Transistor Tester