9 Best Transistor Tester Reviews in 2022


Transistors are one of the most important and highly useful components that are used in all kinds of circuits. But since not all transistors are the same, testing them before using them is highly important. For the same, you will need something like the best transistor testers stated down below which have been chosen as per these points:

  • Display: As you will be taking all of the measurements from your transistor tester from its display, having an easy-to-read and large display is quite important. Because of this, you can find both monochromatic LCD displays as well as colored ones where the latter is better. You can also check the display size since a 1.8 inch display will offer better readability than a smaller 1.2 inch one.
  • Identification: Since all electrical circuits use much more than just transistors, you will need a testing tool for all of them. For the same, most transistor testers also offer testing for other components. And to make this process easier and faster, transistor testers also include automatic identification features for ease of use.
  • Measurement Range: Whether you are testing transistors or any other components on your circuit, you would want your transistor testers to have a high measurement range for the same. Any transistor tester which offers a large range will be perfect for testing both small and large-sized transistors which is required to ensure that you are using the right transistors in your circuit.

Despite these points being some of the most important ones, you still need to consider much more. As a result, all the best transistor testers present here also have their major specifications and features properly explained next to a complete “Buying Guide” which will help you in easily going with the best transistor testers by the end of the listicle.

Best Transistor Testers 2022

Best Transistor Tester Reviews

1. DROK Mosfet Transistor Capacitor Tester

DROK Mosfet Transistor Capacitor Tester

DROK is a well reputable and fairly popular brand of transistor testers and other related testing tools which are generally known to offer handy and useful features to the user.

The DROK transistor tester offers all kinds of useful features making it a great all-rounder option. For starters, you get an excellent 1.8 inch display with this unit which happens to be a colored LCD display. You also get automatic identification with this tester which allows you to work on NPN and PNP transistors along with other components.

You also get other handy features like a 40-second auto shutdown function which is quite handy for getting the most out of its 9V battery. While you do not get a warranty with this transistor tester from DROK, it does feature a great build quality which is to be expected at its high-end price.

Best Features:

  • Uses a colored LCD display for showing its readings
  • Supports automatic identification for NPN and PNP transistors
  • Offers an auto-shutdown function

Pros:

  • Great looking colored LCD display with a large size
  • Offers pretty good battery life with an auto shutdown function
  • Works with all kinds of electrical components

Cons:

  • A bit on the expensive side for not including a warranty

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2. Longruner Multi-function Tester

Longruner Multi-function Tester

Even though Longruner is a fairly new and small brand of electrical testing equipment, its offerings are still quite a great and versatile option thanks to the complete package that you get.

Longruner’s transistor tester is one of the best options out there if you want to get started right away since it includes all kinds of accessories in the box. Apart from its accessories, it even includes a colored LCD 1.8-inch display which looks quite great. And to get the most out of its display and included accessories, it even features automatic identification for not only NPN and PNP transistors, but other components as well.

While this transistor tester does feature an inbuilt chargeable battery for practicality, it does not come with an automatic shutdown feature which can be an issue for many. Thankfully, you will be glad to know that this transistor tester does feature a 1-year warranty for long term usage.

Best Features:

  • Uses a colored LCD display for showing its readings
  • Supports automatic identification for NPN and PNP transistors
  • Comes with a 1-year warranty

Pros:

  • Includes a wide range of handy accessories in the box
  • Large and high-resolution display with colored readings
  • Inbuilt battery for easy charging and ease of use

Cons:

  • Lacks an auto-shutdown function for increasing battery life

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3. KOOKYE Mega328 Transistor Tester

KOOKYE Mega328 Transistor Tester

Kookye is one of the more affordable yet great options for all those who are buying electronics accessories and testing tools which are meant to last for a long time.

This Kookye transistor tester is the perfect option for long term usage, especially for its given price tag. Since this is a barebones transistor tester, you get a monochromatic LCD display with it which is to be expected. Thankfully, it still features an automatic identification option which is always great for saving time.

As for its power options, it is powered by a 9V battery which needs to be bought separately. Thankfully, yours will last for a long time thanks to its auto shutdown function. But the best part about this transistor tester is that you get a 1-year warranty and an included case for its barebones design.

Best Features:

  • Uses a monochrome LCD display for showing its readings
  • Supports automatic identification for NPN and PNP transistors
  • Offers an auto-shutdown function
  • Comes with a 1-year warranty

Pros:

  • High value for money transistor tester with an entry level price tag
  • Quite great for long term usage with included warranty and case
  • Decent functions and features for versatility

Cons:

  • Requires you to buy a 9V battery separately

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4. BSIDE ESR02 PRO Digital Transistor Tester

BSIDE ESR02 PRO

BSIDE is one of the more premium and high-end options available when you are talking about electrical components and related testing equipment like its transistor tester.

The BSIDE ESR02 transistor tester is one of the best options out there which is made for heavy-duty usage. Apart from including heavy-duty probes for testing, this transistor tester also features a large and easy-to-read monochrome LCD display. As you would expect, you also get automatic identification support with this transistor tester which works great for both NPN and PNP transistors along with other components as well.

Since it is powered by a 9V battery, BSIDE includes a 10-second automatic shutdown feature for the best possible battery life. Being such a high-end and premium transistor tester, BSIDE also includes a 1-year warranty even though it has a pretty sturdy build quality.

Best Features:

  • Uses a monochrome LCD display for showing its readings
  • Supports automatic identification for NPN and PNP transistors
  • Offers an auto-shutdown function
  • Comes with a 1-year warranty

Pros:

  • Perfect transistor tester for heavy-duty usage
  • Includes handy probes for working on transistors and other components
  • Solid build quality with a decent warranty for peace of mind

Cons:

  • Highly expensive transistor tester compared to others

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5. YWNYT LCR-TC1 Display Transistor Tester

YWNYT LCR-TC1 Display Transistor Tester

You can also consider YWNYT and its electrical testing tools like its transistor tester if you want something that not only offers features but also includes handy accessories.

YWNYT’s transistor tester is a highly versatile option since it includes all kinds of accessories like cables, batteries, and even components. Taking a look at the features that it includes, you will be glad to know that the YWNYT transistor tester features a colored LCD display. You also get automatic identification with it for NPN and PNP transistors.

Another automatic function of this transistor tester is its automatic shutdown function. With this, it can get the most out of its 9V battery in terms of the battery life that you can expect. However, if you want something for long term usage, you should look elsewhere since this one does not have any included warranty.

Best Features:

  • Uses a colored LCD display for showing its readings
  • Supports automatic identification for NPN and PNP transistors
  • Offers an auto-shutdown function

Pros:

  • Features a wide range of accessories in the box
  • Handy features like auto shutdown and auto identification
  • Decently large and easy to read colored display

Cons:

  • Misses out on an included warranty

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6. ICQUANZX LCR TC1 ESR Tester

ICQUANZX LCR TC1 ESR Tester

ICQUANZX can be another viable option for all those who want a transistor tester that is ideal for long term usage and works without any issues even over a long period of time.

This ICQUANZX LCR TC1 transistor tester is a great all-rounder option for many since not only is it quite durable and reliable, but it even includes a decent number of accessories in the box. As for its features, you will find a decent size monochrome LCD display with it. With this display, you can take advantage of its automatic shutdown function for testing NPN and PNP transistors.

Similar to most other transistor testers out there, this one also uses a 9V battery for its power requirements. And since it also has an auto-shutdown function, you can expect fairly decent battery life from it as well. But unlike others, you get a 1-year warranty with it which is quite great for most.

Best Features:

  • Uses a monochrome LCD display for showing its readings
  • Supports automatic identification for NPN and PNP transistors
  • Offers an auto-shutdown function
  • Comes with a 1-year warranty

Pros:

  • Includes various handy and useful accessories in the box
  • Decent build quality with a standard warranty for peace of mind
  • Fairly long battery life thanks to auto shutdown and monochrome display

Cons:

  • Display’s resolution is a bit average and mediocre

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7. ACEIRMC Transistor Tester

ACEIRMC Transistor Tester

ACEIRMC is a comparatively small and much cheaper option out there when you are talking about electrical testing equipment like transistor testers and other related products.

The ACEIRMC transistor tester is the cheapest option given here making it perfect for all budget buyers who are on a tight budget. Since it is the cheapest option given here, its included monochrome LCD display is to be expected. But unlike other cheaper options, this one still includes an automatic identification function for NPN and PNP transistors.

In fact, you also get an auto-shutdown function with this transistor tester which is quite important since it uses a 9V battery for its power needs. However, being such an entry-level transistor tester, it does not offer any warranty which becomes an even bigger issue considering its barebones design.

Best Features:

  • Uses a monochrome LCD display for showing its readings
  • Supports automatic identification for NPN and PNP transistors
  • Offers an auto-shutdown function

Pros:

  • Highly affordable and budget-friendly transistor tester
  • Offers a case for protecting its barebone design
  • Handy automatic features for identification and power

Cons:

  • Not a reliable or durable transistor tester

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8. AITRIP Transistor Tester

AITRIP Transistor Tester

Without charging a premium for the same, AITRIP and its transistor testers happen to be a great option for all those who are looking for a complete package in terms of included accessories.

AITRIP’s transistor tester is the cheapest option given here which still includes handy accessories in the box at an affordable price tag. Even with a fairly low price tag, this transistor tester also features a colored LCD display for easily viewing everything. Apart from its easy to read display, you also get an automatic identification feature with it.

A great thing about this transistor tester is that you get an inbuilt battery with it which is rechargeable. However, it does not offer an automatic shutdown function which does affect its battery life a bit. Despite its lack of an included warranty, the build quality of this transistor tester alone makes it quite great for long term usage.

Best Features:

  • Uses a colored LCD display for showing its readings
  • Supports automatic identification for NPN and PNP transistors

Pros:

  • Includes various accessories on a budget
  • Great looking colored display for easily reading measurements
  • Inbuilt battery for easy charging and ease of use

Cons:

  • Misses out on an auto-shutdown function

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9. Aideepen Transistor Tester

Aideepen Transistor Tester

Aideepen and its electrical testing products like its transistor tester given here can be a great option for all those who are looking for something feature-rich and ideal for long-term usage.

This Aideepen transistor tester is the most feature-rich option given here since not only do you get high-end features with it, but it also includes various handy accessories in the box. Starting with its display, you will find a pretty large 1.8 inch colored LCD display. Just like most other transistor testers, this one also has automatic identification for NPN and PNP transistors.

Because this transistor tester relies on a 9V battery for its power requirement, it features an auto-shutdown function for extending its battery life as much as possible. Unfortunately, despite offering a fairly sturdy build quality, this transistor tester lacks any form of warranty.

Best Features:

  • Uses a colored LCD display for showing its readings
  • Supports automatic identification for NPN and PNP transistors
  • Offers an auto-shutdown function

Pros:

  • Perfect option for heavy-duty usage with various included features
  • Features multiple handy accessories in the box
  • Decent build quality for peace of mind

Cons:

  • Misses out on manufacturer warranty

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Buying Guide for the Best Transistor Testers

Those of you who work on electrical circuits quite often must know that there are all sorts of components that you need to use for the same. Out of the various options out there, a transistor is something that gets used in almost all circuits.

But since choosing the right transistor is quite important for your circuits, you will need to use one of the best transistor testers given above. To help you in choosing the right transistor tester, we have explained some of the most important factors and aspects of all these transistor testers. And in case you wish to know further, make sure to check out this detailed buying guide for the best transistor testers:

Display

When you are using a transistor tester, you will be using its display to take all readings and work on transistors. Due to this, it is quite important to have a display that is easy to read at all times. For the same, the first thing to check is whether you are going with a monochromatic or a colored LCD display since colored ones are easier to read.

Another factor regarding the display of your transistor tester is the display size. This is due to the reason that a large 1.8-inch display will be much easier to read than a smaller 1.2 inch one.

Identification

In case you want to use your transistor tester for testing just more than a transistor, then you will be glad to know that most of them allow you to do the same. Not only do transistor testers work with other electrical components, but they also offer features like automatic identification. Such a feature allows your transistor tester to change its testing mode according to the electrical component that you are testing.

Measurement Range

The measurement range offered by your transistor tester is highly important to check if you use components of all kinds. This is due to the reason that while some electrical components are ideal for smaller circuits, other ones are ideal for larger circuits. Hence, any transistor tester which offers a wide range for both small and large components is going to be perfect for versatile usage.

Automatic Power Off

Because all transistor testers rely on battery power for their functioning, you would want the internal battery to last for as long as possible. And to ensure the same, many transistor testers include automatic power-off function. Such a function simply turns off your transistor tester if you have not used it in a while. While some may turn off your transistor testers in 20 or 40 seconds, a few also allow you to adjust this time as needed.

Warranty

After picking up the right transistor tester for your needs and requirements, you would want it to last for as long as possible. And while not all transistor testers may include one, checking the included warranty of your transistor tester is still a great idea. Talking about the warranty options that you can find with transistor testers which include a warranty, most of them feature a decent 1-year warranty which should be quite good for most users.

FAQs for the Best Transistor Testers

1. How do you take readings from the display of a transistor tester in the dark?

Ans. Even though not all transistor testers may offer the same, many of them come with backlit displays. Because of this, their displays will light up in the dark making everything easier to read while taking measurements and readings.

2. How do you switch your transistor testers for use with other components?

Ans. Since almost all transistor testers out there feature automatic identification features, you do not have to switch manually for testing components other than a transistor. You can simply continue your testing and your transistor tester will keep switching automatically at all times.

3. Where do you insert your transistor for testing it using a transistor tester?

Ans. Most transistor testers will come with included probes that allow you to test transistors that are already installed in a circuit. Some of them even feature a pin interface that allows you to install your transistor or any other component on your transistor tester for proper testing.

Conclusion

Just per the name, a transistor tester is used to identify and test the type of transistor that you are going to use in your circuits. With such a tester, you can be assured that you are using all the right components and your electrical circuit will work properly. Hence, we have already given a few of the best transistor testers up above in this listicle.

With all these different transistor testers, you can also find their important specifications and factors. Moreover, we have also given an extensive buying guide for the best transistor testers up above. And keeping all these details and information in mind, here are some of our ideal recommendations and picks for the best transistor testers:

  • Beginning with one of the most affordable options out there, the ACEIRMC transistor tester is the cheapest option given above. Even though it is a barebone transistor tester, you still get a decently large monochromatic LCD display along with automatic identification. It allows you to test NPN and PNP transistors with ease.
  • Despite being fairly affordable, the Kookye transistor tester is the cheapest option given above which still comes with a 1 year long warranty making it pretty great for long term usage. As for its functions, it includes a monochromatic LCD display that supports automatic identification for all kinds of transistors.
  • You can consider the Aideepen transistor tester a great high-end option since apart from its feature, it even comes with accessories like cables and a battery. As for its features, you get a colored LCD 1.8-inch display along with automatic identification. Being a high-end transistor tester, it also supports both NPN and PNP transistors for testing.



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