Features LCD Backlight Screen: The transistor tester adopts a large LCD screen, which is clear and intuitive, with a backlight function, which can be clearly read even in a dark environment and is easy to use. Automatic Detection: The digital transistor tester can automatically detect components such as NPN, PNP bipolar transistors, N-channel and P-channel MOSFETs, diodes (including double diodes), thyristors, transistors, resistors and capacitors. High Performance: LCD Multimeter Transistor Tester detects transistor emitter forward bias voltage, MOSFET protection diode and amplification factor reference. MOSFET gate threshold voltage and gate capacitance measurements. Simple Operation: one key operation, start-up test, one key to get it. The placement of the device does not require a command sequence, and the transistor tester screen will display the component function of each pin after the measurement. Intimate Service: We provide 7-day worry-free return and exchange service for all customers. If you have any questions about our transistor testers, you are welcome to contact us and we will be happy to serve you. This meter is a small tool for the engineer, electronic maintenance and factory. It is very easy to test plug-in and SMD devices, also can test different kinds of diodes, triodes, thyristors, enable to analysis the device type, the polarity of the pin, the output HFE, the valve voltage, the junction capacitance of the FET. Specification: Brand: BSIDE Model: ESR02 Pro Resistor: 0Ω~50Ω, Resolution: 0.01 ohm Capacity: 25pF~100mF, Resolution: 1pF Inductance: 0.01mH~20H, Resolution: 0.01mH Capacitor ESR Resolution: 0.01Ω Battery: 1pcs x 9V 6LR61 Battery (NOT included) Color: black Size: Approx. 14*8*4.5cm/5.5*3.1*1.8inch Weight: Approx.214g/7.5oz Calibration: Short the test pin 1, 2, 3 together and push "POWER / TEST" button, then the screen prompts to enter calibration, push the button again within 2 seconds to confirm. Few seconds latter the screen prompts to release pin 1, 2, 3, release them and wait for calibration finish. Package List: 1 x Transistor Tester 1 x User Manual Note: Before testing the capacitor, be sure to discharge it, otherwise it may damage the internal circuit. If using DC supply, please choose DC 9V~12V adapter. (including 9V and 12V) Can be powered by a 9V 6LR61 battery (NOT included), when the battery power is under 6V, please replace a new one. Package List