1. Automatic detection of NPN and PNP transistors, n-channel and p-channel MOSFET, diode (including double diode), thyristor, transistor, resistor and capacitor and other components. One -button operation, automatic shutdown. Using 9V battery (Not included) 2. Automatic test the pin of a component, and display on the LCD. 128 x 64 big Backlight LCD display,only 2mA when stand by. 3. Can detect the transistor, MOSFET protection diode amplification coefficient and the base to determine the emitter transistor forward biased voltage. LED is detected as a diode forward voltage higher . Combo of the LED is identified as two diodes. 4. Measure the gate and gate capacitance of the MOSFET threshold voltage. Measuring bipolar transistor current amplification factor and base - emitter threshold voltage. Via the base - emitter threshold voltage and high current amplification factor to identify transistors. 5. Resistance measurement resolution is 0.1 ohms , 50M ohms can be measured. Can measure capacitanceCan measure capacitance of 30pF-100mF , resolution 1pF. 2uF more capacitors can simultaneously measure the equivalent series resistance ESR values. The two can be displayed with a decimal value , resolution 0.01 ohms. : ELECTRICAL Display Type: Digital Display Chip: 1. Eeverse breakdown voltage is less than 4.5V Zener diode can be identified. 2. Can measure a single diode reverse capacitance. If the bipolar transistor connected to the base and collector or emitter of a pin , it can measure the collector or emitter junction reverse capacitance. 3. can be obtained with a single measurement rectifier bridge connection. 4. Can simultaneously measure two resistors and resistor symbol is displayed. Displayed on the right with a decimal value of 4. Resistance symbol on both sides shows the pin number. So you can measure the potentiometer. If the potentiometer wiper is not transferred to an extreme position , distinguish the middle and both ends of the pin. 5. Can be in the correct order and the diode symbol display two diodes , and gives the diode forward voltage. Notice: Before measuring capacitance , the capacitor must be discharged , otherwise very likely damage the meter. colour:Multicolor Material:ABS size:10 x 6 x 3cm Package Contents: 1 x LCR-T4 ESR Meter Transistor Only the above package content, other products are not included. Note: Light 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.