It automatically detects NPN and PNP, N-channel and P-MOSFET channel, diodes, thyristors, resistors, capacitors or other devices. It can automatically test the pins of a component and display on the LCD. It measures the threshold voltage and gate gate capacitance of the MOSFET. It can measure current amplification factor of the bipolar transistor and base-emitter of threshold voltage. Two-button operation, automatic shut-off to prevent waste. Powered by 9 V battery (not included). Before measuring capacitance, the capacitor must be discharged, otherwise meter may be damaged. Transistor Tester ONLY,other accessories demo in the picture is not included. Display:160x128 LCD Resistance Test Range:0.5ohm-50Mohm Inductance Test Range:0.01mH-20H Test Capacitor Range:25pF-100000uF Shutdown Current:.20nA Quantity:1 Pc Colour:Black Material:ABS Size:app.70mmx135mmx24mm Package Contents: 1 * Transistor Tester 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.