Features : Small size, easy to use. Digital LCD display for easy readings. Automatic shutdown, shutdown current is only about 20nA. Measure FET gate threshold voltage and gate capacitance. Automatically detects NPN and PNP transistors, FET, diodes, dual diode, thyristor, SCR, automatic identification of the transistor pinout. Descriptions : This is a Transistor Tester DIY kits. Widely used to detect NPN and PNP transistors, FET, diodes, dual diode, thyristor, SCR, automatic identification of the transistor pinout. Specifications : Display: LCD Power Supply: 1 X 9V Battery(not included); DC 6.8-12V Current: Approx. 30mA Resistance Measurement: Max. 50M? Resistance Resolution: 0.01? Capacitance Measurement: 25pF~100mF Capacitance Resolution: 1pF DC Voltage Measurement: Up to 50V Package Included : 1 x Fully assembled transistor tester Notes : Before measuring capacitance, the capacitor must be discharged, otherwise very likely damage the meter.