Features:Micro-controllerusing 8MHz external crystal, better measurement accuracy.Automatically detect NPN, PNP bipolar transistors, N-channel and P-channel MOS FET, JFET, diodes, dual diode, thyristor small power unidirectional and bidirectional thyristor.One button operation, automatic shutdown with only 20nA shutdown current.Each test takes about two seconds, with only large capacitors and inductance measurements taking longer.Can be in correct order and the diode symbol display two diodes, and gives the diode forward voltage.Specifications:Shutdown Current: 20nAResistance Measurement: Max. 50MResistance Resolution: 0.1Capacitance Measurement: 30pF~100mFCapacitance Resolution: 1pFInductance Measurement: 0.01mH-20HColor: GreySize: Approx. 123 x 80 x 33mm / 4.84 x 3.15 x 1.3inWeight: Approx. 198gPackage Included:1 x MK-168 Transistor Tester1 x SMD Adapter Test3 x Test Clips (Red, Green, Yellow)Notice: Before measuring capacitance, the capacitor must be discharged, otherwise very likely damage the meter.