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After exploring an insanely large number of articles and reviews by our powerful Artificial Intelligence and Machine Learning engines; and detailed processing, assessment and infiltration by our qualified high-technology gurus, the golden shortlist for the Best Component Testers (2021) is ultimately prepared.

The ultimate guide on Best Component Testers produced using Deep Learning and Artificial Intelligence technology

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In order to come up with the Best Component Testers (2021), our intelligent platforms and gurus have taken many factors into account such as product fitness for use, user-friendly features and give customer satisfaction, deficiency-free, conformance of standards, affordability, dependability, design quality, quality conformance to needs and guidlines, safety, real customer satisfaction and numerous others. It is worth to mention that each user has different needs so please use the shortlist below as a guide and not as a gospel. In any case, in the list below you can undoubtedly find the overall best ones regardless of your needs.

Our dynamic platforms and specialized hi-technology experts work hard to identify the best product choices. We believe that our review evaluation can help you simplify your purchase decision and choose among the very Best Component Testers (2021).

Best Component Testers

Best Choice No. 1
Multifunction Meter DIY kit, kuman Mega 328 Graphic transistor Tester, NPN PNP Diodes Triode Capacitor ESR SCR MOSFET Resistor Inductance LCD Display Checker with case and screwdriver K77
  • Kuman graphic multifunction tester: resistor + capacitor + diode + SCR + inductance + Transistor + mos tube.
  • Automatic detect NPN and PNP transistors, N-channel and P-channel MOSFET, diode (including dual diodes), transistors, resistors, capacitors, thyristors and other components.
  • With function of automatic power off, can save unnecessary time and battery capacity , Automatic test the pin element and the display on the 12864 LCD Display.
  • With function of automatic power off, can save unnecessary time and battery capacity , Automatic test the pin element and the display on the 12864 LCD Display.
  • Package Content: 1 x Transistor Tester 1 x Acrylic shell 1 x screwdriver
Best Choice No. 2
KKmoon Component tester -GM328, KKmoon esr meter Tester Diode Capacitor ESR Voltage Frequency Meter PWM Square Wave Signal Generator transistor tester , Precision ABS (red)
  • Main chip is the DIP, easy for electronic enthusiasts to DIY or update the main chip.Use 9V battery(not included), can also use DC power(DC 6.8-12V).Automatic shutdown, shutdown current is only about 20nA.Rotary switch control, a key measurement for convenient use.
  • Automatically detects NPN and PNP transistors, FET, diodes, dual diode, thyristor, SCR, automatic identification of the transistor pinout.Test NPN and PNP transistor common-emitter current amplification factor, the base-emitter threshold voltage, off the collector – emitter leakage current.
  • Support 2 resistors measurement, show its positive and negative, on-state voltage.Resistance measurement maximum resolution 0.01Ω, can be measured up to 50MΩ.
  • Measure FET gate threshold voltage and gate capacitance.Automatically test the pins of a component and show on the display.Digital LCD display for easy readings, can display measured data and graphics.
  • For the following 2100Ω resistor while measuring its inductance measuring range from 0.01mH – 20H.Can be used as signal generator and frequency meter: frequency range from 1Hz-2MHz and can generate 1%-99% PWM(pulse width modulation) signals.
Best Choice No. 3
HiLetgo LCR-T4 Multifunctional Resistor Capacitor Diode SCR Inductor Triode MOSFET Tube Meter Tester component tester kit 9V with 12864 Green Backlight LCD Display
  • Digital 128*64 LCD display for easy readings, can display measured data and graphics.
  • Short detection time: only 1.7 seconds. It is normal to take 1 minute for bulk capacitor detection
  • Automatic detection of NPN and PNP transistors, N-channel and P-channel MOSFET, diodes, triodes, resistors, capacitors or other devices
  • Use 9V battery(not included), can also use DC power(DC 6.8-12V). Automatic shutdown, shutdown current is only about 20nA.
  • Measure the gate threshold voltage and gate capacitance of the MOSFET,Measure bipolar transistor current amplification factor and base-emitter threshold voltage
Best Choice No. 4
BSIDE ESR02 PRO Digital Transistor Tester SMD Components Meter Mega328 NPN/PNP Diode Triode Capacitor Inductance ESR Checker with Tweezers
  • [Wide Application]: It is very easy to test plug-in and SMD devices, it can also be used to test different kinds of 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.
  • [Automatical Identification]: Smart transistor checker is able to detect NPN and PNP transistors, N-channel and P-channel MOSFET, diodes, thyristors, resistors, capacitors or other devices automatically.
  • [2 POWER/TEST Button]: POWER/TEST button on both sides, you can operate it with your left or right hand.
  • [Typical ESR Value Table]: There is a table “typical ESR value of electrolytic capacitor” at the back, provide a clear indication that you can quickly understand and use it.
  • [Added Functions]: The transistor tester will be auto power off to save energy if there is no any operation within about 10 seconds. Large LCD display with backlight function for easy reading.
SaleBest Choice No. 5
ICQUANZX LCR TC1 ESR Tester Transistor Inductance Capacitance Resistance ESR Meter
  • For detecting NPN and PNP transistor, capacitor, resistor, diode, triode, N-channel and P-channel MOSFET, IGBT, JFET, triac and battery, etc.
  • Can also be used to detect infrared wave forms.
  • After detection, align the infrared remote control with the “IR” light, then press the button in the remote control, if the detector successfully decode it, it will display the data code and infrared wave form.
  • One button operation, automatically detect and shutdown, and you can also press the multi-functional button to close the detector.
  • Put the pins of component in corresponding area, then dial the little handle and the detector will test it automatically, finally the results will display on the back light TFT screen clearly.
Best Choice No. 6
Transistor Tester Component Tester/Soldering Kit Circuit Board, Meter Tester Diode Capacitor ESR Voltage Frequency Meter Square Wave Signal Generator
  • – Digital LCD display for easy readings, can display measured data and graphics.
  • – Main chip is the DIP, easy for electronic enthusiasts to DIY or update the main chip.
  • – Use 9V battery(not included), can also use DC power(DC 6.8-12V). Automatic shutdown, shutdown current is only about 20nA.
  • – Automatically detects NPN and PNP transistors, FET, diodes, dual diode, thyristor, SCR, automatic identification of the transistor pinout.
  • – Test NPN and PNP transistor common-emitter current amplification factor, the base-emitter threshold voltage, off the collector – emitter leakage current.
Best Choice No. 7
Bside Mosfet Transistor Capacitor Tester Inductance NPN PNP Diode Resistor LCR Meter MOS SCR ESR Checker Triode SMD Components Detector
  • [Multi-functional Transistor Tester]: It is very easy to test plug-in and SMD devices, it can also be used to test different kinds of 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.
  • [Automatical Identification]: Bide smart technology make this transistor checker can automatically detect NPN and PNP transistors, N-channel and P-channel MOSFET, diodes, thyristors, resistors, capacitors or other devices.
  • [2 POWER/TEST Button]: POWER/TEST button on both sides, you can operate it with your left or right hand.
  • [Easy to Use]: Single key operation, there is a table “typical ESR value of electrolytic capacitor” at the back, provide a clear indication that you can quickly understand and use it.
  • [Added Functions]: The transistor tester will be auto power off to save energy if there is no any operation within about 10 seconds. Large LCD display with backlight function for easy reading.
Best Choice No. 8
Aideepen Mega328 LCR-T4 Transistor Tester Diode Triode Capacitance LCR ESR Meter Module MOS PNP/NPN M328 (Battery Buckle)
  • 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
  • Can detect the transistor, MOSFET protection diode amplification coefficient and the base to determine the emitter transistor forward biased voltage
  • Use 12864 liquid crystal display with green backlight, Automatic test the pin of a component, and display on the LCD
  • Measure the gate and gate capacitance of the MOSFET threshold voltage
  • Please Note: if you got the broken screen, please kindly contact us in time. We will solve it for you ASAP. Wish you could understand that sometimes such things happen in long-distance transportation. I would be appreciated that you could giving us the opportunity to make it up
Best Choice No. 9
CLIFF ELECTRONIC COMPONENTS CL1850 ELECTRICAL TESTER
  • Price For: Each External Height: 49mm External Width: 60mm External Depth: 127mm Current Rating: 13A Voltage AC: 240V Voltage Rating: 240VAC RoHS Compliant: Yes
Best Choice No. 10
B&K Precision 815 Hand-held Component Tester
  • 3-1/2 digit extra large (0.8” digit) high contrast LCD display
  • Transistor leakage test
  • Capacitance zero adjustment
  • Diode and SCR test; LED test; battery test
  • 1 Year warranty

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