One-Click Measurement Operation, Automatic Power Off After Delay. The Shutdown Current Is Only 20na, Supporting Battery Operation. Supports The Measurement Of Two Resistors, And The Potentiometer Can Also Be Measured. If The Potentiometer Is Adjusted To One End Of It, The Tester Cannot Distinguish Between The Pins In The Middle And The Ends. The Resolution Of Resistance Measurement Is 0.1 Ohm, And The Highest Measured Value Reaches 50m Ohm. Automatically Detect Pnp And Npn Bipolar Transistors, N And P Channel Mosfets, Jfet Field Effect Transistors, Diodes, Dual Diodes, Thyristors, Resistors, Capacitors, And Inductors. Automatically Detect Pin Definitions. Measure The Current Amplification Factor (B) Of The Bipolar Transistor And The Turn-On Voltage (Uf) Of The Emitter Junction. Transistors Can Be Identified By Their High Threshold Voltage And High Current Amplification Factor. Capacitance Measurement Range Is From 25pf To 100mf (100,000 Uf). The Resolution Can Reach 1 Pf, And The Inductance Measurement Range Is 0.01mh-20h. Otherwise, It Will Be Displayed As Resistance. If The Dc Resistance Value Of The Inductor Is Higher Than 2100 ohms, It Will Also Be Displayed As Resistance. When Testing The Capacitor, The Vloss Displayed On The Screen Means Loss And Attenuation. The Larger The Value, The Closer The Capacitor Is To Scrapping! Esr Is Impedance. The Smaller The Value, The Better The Capacitor Performance! The Protection Diodes Inside Bipolar Transistors And Mosfets Can Be Detected And Displayed On The Screen. It Can Detect The Equivalent Series Resistance (ESR) Of Capacitors Above 2uf With A Resolution Of 0.01 ohm. This Feature Is Very Important For Testing Capacitor Performance. It Is Possible To Display The Correct Direction Sign For Both Diodes, As Well As The Forward Voltage Drop. Measure The Threshold Voltage And Gate Capacitance Of The Mosfet. The Led Is Detected As A Diode, And The Forward Voltage Drop Is Higher Than The Normal Value. Dual Led Detection Is Dual Diode. The Led Will Flash During Detection. The Time Of Each Test Is About Two Seconds, Only Capacitance And Inductance Measurements Will Take Longer Power Supply:DC9V (You Need To Bring Your Own 9V Laminated Battery 6F22) Simple Operation Instructions: Connect Pins 1, 2, And 3 At Will, Automatically Identify The Type, Automatically Detect The Pin Sequence, Graphic Display, And Automatically Measure Parameters. Test Scope Description: 1. Transistor Range: Transistors Composed Of Less Than 2 (Including 2) Pn Junctions, And Do Not Have Other Resistor-Capacitor Components Inside. 2. Resistance Measurement 0.5ohm-50mohm 3. Inductance Measurement 0.01mH-20h 4. Capacitance Measurement 25pf - 100000uf Note:Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use Colour:As Shown Material:ABS Size:70mmx135mmx24mm Package Contents: 1 * Transistor Tester 1 * Socket Only the above package content, other products are not included. Note: Light reflection 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.