As seen on .YOUTUBE EEVblog
This little unit is amasing, it is capable of testing NPN, PNP bipolar transistors, N -channel and P -channel MOS FET, JFET , diodes, two diodes, thyristors small power unidirectional and bidirectional thyristor
Automatic identification of parts pin outs.
Measuring bipolar transistor current amplification factor and base - emitter threshold voltage
Via the base - emitter threshold voltage and high current amplification factor to identify Darlington transistors
Can detect bipolar transistors and MOS transistors protection diodes.
Requires a 9volt battery