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, MOSFET, enable to analysis the device type, the polarity of the pin, the output HFE, the valve voltage, the junction capacitance of the FET._x000D_ _x000D_ Features:_x000D_ _x000D_ A key operation, boot test, a key to get. _x000D_ Large LCD display with backlight function for easy reading. _x000D_ Automatically test the pin elements and display them on the LCD. _x000D_ Automatic detection of components such as NPN, PNP bipolar transistors, N-channel and P-channel MOSFET, diodes (Including double diodes), thyristors, transistors, resistors and capacitors, etc. _x000D_ Can detect transistor emitter forward bias voltage, MOSFET protection diode and amplification factor reference. _x000D_ MOSFET gate threshold voltage and gate capacitance measurement. _x000D_ _x000D_ Specification:_x000D_ Brand: BSIDE_x000D_ Model: ESR02 Pro_x000D_ Resistor: 0~50, Resolution: 0.01 ohm_x000D_ Capacity: 25pF~100mF, Resolution: 1pF_x000D_ Inductance: 0.01mH~20H, Resolution: 0.01mH_x000D_ _x000D_ Capacitor ESR Resolution: 0.01 _x000D_ Battery: 1pcs x 9V 6LR61 Battery (NOT included)_x000D_ _x000D_ Size: Approx. 14*8*4.5cm/5.5*3.1*1.8inch_x000D_ Weight: Approx. 223g / 7.9oz_x000D_ _x000D_ Using Instruction:_x000D_ _x000D_ Push "POWER / TEST" to power on and start a test, multiple measurements can be repeated by this key, auto power off 20 seconds after measurement. _x000D_ Provide three kinds of socket, each socket pin 1, pin 2 and pin 3 are connected. _x000D_ The placement of the device does not require the order of instruction, and the screen displays the component function of each pin after measuring. _x000D_ There is a table "typical ESR value of electrolytic capacitor" at the back, it is for guiding only, these are typical value for standard grade electrolytic capacitor at room temperature. _x000D_ _x000D_ Calibration:_x000D_ 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._x000D_ _x000D_ Package List:_x000D_ _x000D_ 1 x Transistor Tester _x000D_ 1 x User Manual_x000D_ _x000D_ _x000D_ Note:_x000D_ _x000D_ Before testing the capacitor, be sure to discharge it, otherwise it may damage the internal circuit. _x000D_ If using DC supply, please choose DC 9V~12V adapter. (including 9V and 12V) _x000D_ Can be powered by a 9V 6LR61 battery (NOT included), when the battery power is under 6V, please replace a new one.