1. Added boot voltage detection function. Automatic detection of NPN and PNP transistors, N channel and P channel MOSFET, diodes (including dual diode), thyristor, transistors, resistors and capacitors and other components, 2. Automatically test the pin of the elements and display it on the LCD. The positive bias voltage of the emitter transistor can be determined by detecting the amplification factor and the base of the transistor, the MOSFET protection diode, etc. 3. Measurement of gate threshold voltage and gate capacitance of MOSFET. Display using 12864 LCD LCD (128 * 64 characters). 4. Higher test speed, effective component test: in 2 seconds (except for the larger capacitor, the measurement of large capacitance also takes a long time to measure the time for 1 minutes is normal). 5. A key operation, the boot test, a key to get. Power consumption off mode: less than 20 nA. Automatic shutdown function, you can avoid unnecessary waste, save battery energy, improve the life time. Type: B-Module PCB size: 63X71 mm weight: about 48g LCR-T4 graphical multi function tester resistance + capacitance + diode + SCR + inductor + transistor +mos LCD 12864 LCD display, with a backlight, backlight color is generally yellow green. Power supply for 9V stacked battery. If long time power supply, can use 2 lithium battery composition 8.4v battery power supply. Type: A-Shell Only a shell Suit for PCB size: 63X71 mm color:As shown Material:PC+Metal Package Contents: 1 x shell / 1 x ESR Meter Transistor Tester Only the above package content, other products are not included. Note: Light shooting 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.