Какой usb тестер выбрать

Все в порядке, но.

Этот текст мало кто будет читать и мы можем написать здесь все, что угодно, например.
Вы живете в неведении. Роботы уже вторглись в нашу жизнь и быстро захватывают мир, но мы встали на светлый путь и боремся за выживание человечества. А если серьезно, то.

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Какой USB тестер выбрать? 8 моделей, протестированных лично

Всех приветствую! После покупки нового зарядного устройства пользователь может задаться вопросом: «Мне кажется, со старым блоком питания мое устройство заряжалось быстрее» — и дабы была возможность проверить правдивость этой теории, можно использовать USB тестер, который способен показывать напряжение и ток. Также иногда китайцы (и не только) присылают поддельные павер банки, или сам производитель хитрит и пишет неправдивые данные о количестве запасенной энергии (именно Вт-ч, а не мАч), проверить реальную емкость поможет USB тестер, а также и вернуть деньги в том случае, если хитрый китаец все-таки хотел обмануть своего покупателя :). Чтобы хоть как-то дать ясность какой USB тестер выбрать, предлагаю ознакомиться с подборкой тестеров, большинством из которых я пользовался лично.

FNB 48

На мое мнение, один из самых востребованных тестеров из-за своей доступной цены и поддержки всех актуальных возможностей. FNB48 имеет отличный 1.77 дюймовый дисплей с хорошими углами обзора. Дополнительно присутствует гироскоп, который автоматически поворачивает информацию на дисплее к пользователю. Управление происходит с помощью кнопок и джойстика (в моем случае, с ним начались небольшие проблемы спустя практически через год активного использования). Присутствует автоопределение протоколов быстрых зарядок (кроме Mi Turbo Charge от Xiaomi, а также новомодных на 65 Ватт и выше), а также триггеры (QC2.0,QC3.0; Huawei FCP, SCP; Samsung AFC; PD2.0/3.0; VOOC/WARP; SuperVOOC и Power Delivery). Также отличительной особенностью именно этой модели является поддержка простенького осциллографа с выводом осциллограммы. Есть функция для проверки сопротивления кабеля, а также проверка e-marker. Есть модификации с Bluetooth и без (с помощью приложения можно дистанционно запускать триггеры или смотреть значения напряжения/силы тока/мощности).

FNB C1

Абсолютно идентичен прошлой модели по функциональной части, отличается лишь меньшими габаритами и уменьшенным дисплеем, а также основными разъемами — Type-C вместо Type-A (которые дают возможность не использовать переходники, так как все современные зарядные устройства идут сразу с разъемами Type-C). Как и в FNB48, есть версия с Bluetooth и без.

FNB38

Предшественник FNB48. Тестер очень схож со своим старшим братом, но лишен режима осциллографа, имеет меньшую диагональ дисплея, а также меньшее количество поддерживаемых протоколов быстрых зарядок (QC 2.0, 3.0; PowerDelivery; Huawei FCP, SCP; Samsung AFC), а также триггеров.

USB тестер Charger Doctor

Мой первый USB тестер. Точность далека от идеальной (на моей памяти погрешность была около 0.2 единиц измерения (вольт, либо ампер)), который дает ориентировочные показания как напряжения, так и тока. На семисегментном индикаторе поочередно меняется показания напряжения и силы тока.

USB тестер KEWEISI

Еще один сверх бюджетный USB тестер. Сравнивая с прошлым тестером «CHARGER Doctor», в данном устройстве установлен сразу дисплей, который отображает одновременно как напряжение, так и ток, дополнительно присутствует таймер и замеренная емкость в мАч.

RD UM24

Старый, проверенный тестер с функциями, которых хватит 90% пользователей. Дисплей — цветной LCD с диагональю 1.44 дюйма. На дисплее отображается значение напряжения, тока, температура, записанная емкость в мАч и мВтч, а также индикация режима быстрой зарядки QC. Есть несколько меню, которые переключаются с помощью кнопки. Учитывая его стоимость, из минусов я могу отметить то, что для подключения дополнительно имеется только micro usb.

RD UM25

Как и прошлая модель, активно пользовался на протяжении нескольких лет активного использования, также попадались в моих тестах зарядных устройств. Старший брат UM24, в котором лишен главный недостаток прошлой модели — присутствует 2 порта Type-C (входной и выходной). Максимальная сила тока, при котором работает тестер была увеличена и составляет 5А (вместо 3, как у UM24). В остальном практически идентичен модели UM25.

USB тестер — блок питания XY-UMPD

Крайне интересная модель, так как присутствует встроенный регулятор напряжения (от 3 до 24 В), фактически это лабораторный блок питания, который работает от USB. Присутствует дисплей, на котором отображается напряжение, ток, мощность, присутствует таймер, а также замеряет «залитую» емкость. Есть возможность подключить внешний термодатчик. Присутствуют триггеры QC 2.0, 3.0; Samsung AFC; Huawei FCP, SCP и PD, а также способен самостоятельно определять протоколы быстрых зарядок, описанных чуть ранее.

Надеюсь подборка была интересна, либо принесла пользу при выборе USB тестера.

Также советую ознакомиться с моим телеграм каналом, который находится ниже. В дальнейшем планирую открыть обсуждение, и с помощью обратной связи подстраиваться под «хотелки» людей и делать честные тесты/обзоры на технику, которая интересна людям.

Спасибо за внимание.

Об авторе

Всех приветствую! Люблю тестировать различную электронику, после чего делиться мнением о своем опыте эксплуатации. Делюсь мнением чаще всего, если устройство вызвало какие-либо положительные либо отрицательные эмоции. Также советую подписаться на мою Telegram группу, где я публикую товары со скидками. Ниже представлены представлены подборки самых разнообразных товаров, самые интересные из которых:

Best USB Tester Reviews

A USB tester is a simple measuring tool that is widely utilized for several measurements of the electrical properties of USB. It measures the USB current, voltage, power, charging speed, discharge capacity, and so on.

In addition to its functions, simultaneously, the current state of the art of the USB tester can also be applied to overvoltage or low voltage current protection. This advantage allows you to easily find out the charging problems with USB cables, car charging, wall chargers, etc.

These testers can also support QC 2.0 / 3.0, BC1.2, Apple iPhone 2.4A, and other fast charging protocol for high voltage testing to safeguard your precious electronic equipment.

Another great thing is the monitoring of the charging time can also be done with just a glance and real-time as well. A small screen provides the HD display of various values with continuous refreshing. It’s also able to automatically cut the power when the device has been fully charged.

These testers can also come with small internal storage for storage and later comparison of the recorded data.

The USB tester can be applied to a variety of electronic circuits/devices like mobile phones, tablets, cameras, power banks, and various other portable devices. Beginners don’t need to worry because they are very simple and easy to operate without any major complexities. You just need to plug and ready to monitor.

While there are a lot of choices of USB testers, in this article, we are going to suggest some recommendations for USB testers. These are 5 best USB testers that we gather from the market and hopefully, one of them suits your needs.

USB Testers Comparison Chart

Top 10 Best USB Tester Reviews in 2023

1. KJ-KayJI Regular & USB C Tester [Best Overall]

This is the overall best USB tester that we recommend first. It’s a 2 in 1 USB tester, IPS digital multimeter, and comes with clip cable support. All of these provide a perfect combination for tech lovers.

The multimeter can monitor different parameters at a time which include current, voltage, capacity, power, D/D- voltage, electric quantity, temperature, load impedance, resistance, charging time, and other relevant data for USB or type C port gadgets.

In terms of the screen display, it contains the latest version of the IPS color screen which also provides eight colors for different data and makes it clearer. A 180-degree flipping feature is also available in this multifunctional device.

In addition to the data monitoring function, this measuring device comes up with build-in circuits for overload voltage protection, low voltage protection, and over current protection to avoid any type of MA functionality at user devices.

Overall, we love to recommend this. It supports QC3.0 (3.8-12V), Android BC1.2 (5V), QC2.0 (5V/9V/12V/20V), MTK-PE (5V/7V/9V/12V), Apple 5V/2.5A, and various other QUALCOMM fast chargers. It can ensure the safety of devices while meeting the output of two devices at the same time.

Pros:

• High Resolution of recorded data
• Can perform multifunction’s at a time
• 18 months of warranty
• Current adjustment according to the ambient temperature change

Cons:

• Large size 2.5 × 2 × 0.4 inches
• High self-current consumption

2. AVHzY CT-3 USB 3.1 Tester

If you have the budget and need a more advanced USB tester, AVHzY CT-3 is the best choice. It comes second for many more features it offers. And if not for its high price tag, it could have been first on the list.

AVHzY CT-3 USB tester is capable of 0-26V and 0-6A voltage and current measurements. It shows reading on its brightly colored TFT screen. This USB tester gives accurate voltage and current readings to 4.5 digits with a maximum gain error of 0.1%. AVHzY CT-3 is suitable for almost all applications. Thanks to its support of various communication protocols. It is also compatible with QC2.0, QC3.0, QC4.0, Huawei SCP, SSCP, FCP, Samsung AFC, VOOC, etc.

This USB tester has two unique features: data logging and programmability. It has powerful PC software that allows data logging of up to 1,000sps and lets you access all features, including a PD listener for device diagnosis. You can program the AVHzY CT-3 USB tester and set your scripts to run on boot. It features 12Mbytes internal memory used for program code storage. The manufacturer also provides APIs and interpreters inside the device to make it convenient for users to customize features.

Pros:

• Programmable
• Supports data logging and PC software data analysis
• Features PD listener for device diagnosis
• Supports older USB protocols
• Large brightly colored TFT screen for data display

Cons:

• Very expensive
• Relatively big in size for those looking for a more portable USB tester.

3. Klein Tools ET920 USB-A and USB-C Digital Meter

Klein Tools is one of the reputable brands for manufacturing high-quality testing and measuring instruments. The same is reflected in their ET920 USB Power Meter. The device is ruggedly built with ABS casing for durability.

Klein Tools ET920 is a dual USB tester supporting USB type A and C. You can use it to test 3-20V and 0.05-3A for USB-A and 3-20V and 0.05-5A for USB-C with an accuracy of 1%. The device can continuously monitor up to 1000 hours of voltage, current, energy, capacity or charge delivered, and resistance. It also features a high-resolution LCD screen that allows usage in areas with low ambient lighting.

The Klein Tools ET920 is built for safety. It features overvoltage and overcurrent protection.

Pros:

• Tests USB type A and C
• Can continuously monitor ports for up to 1,000 hours
• Overcurrent and overvoltage protection
• Lightweight and durable
• Very accurate

Cons:

• Relatively expensive
• Relatively bulky

4. Pemenol Multifunctional USB Tester + Supply Module

Multifunctional voltage, ammeter, and temperature display integrated with the buck-boost power supply module make this gadget more reliable for not only testing the electronic equipment but also serve as a variable power supply.

Its automatic calibration, safety, auto-protection, real-time display, and portability can perfectly suitable for technical engineers to develop, debug electronic instruments. It supports three voltage inputs ways: Regular USB, USB type C, and Micro USB. This USB tester is also very easy to carry and comes with an outer shell for protection against step-up module damaged.

This gadget can protect your hardware from being damaged from overpowering, over current, and under-voltage. The buck-boost converter can automatically calibrate the voltage and current to meet your requirements accurately.

It can convert DC 3.0V-12V to DC 1.0V-24 V and power approximately 2W-3W. You could use it on various small devices, like laptops, chargers, etc. as a multifunctional voltage ammeter. Further, it can also use for providing require DC power to certain low power projects.

Pros:

• Dual Operating System
• Three voltage inputs ways
• Automatic calibration of voltage and current
• High power measuring range 0-110W
• Mini size

Cons:

• This device does not support protection against reverse connection
• Low power supply range
• Each time you have to adjust the working mode before use.

5. Walfront UT658 USB Tester

Walfront also pulled a surprise with their UT658 Dual USB tester. The device looks great and is suitable for various applications, such as engineering, verification, and DIY projects. Walfront UT658 USB tester efficiently monitors charging efficiency and protects the charging equipment.

This dual USB tester supports USB types A and C. it measures voltage within the range of 4-24V DC for both USB types with a resolution of 0.01V. For measuring current, Walfront UT658 has a range of 0.05-3.00A for type A and 0.05-5.00A for type C with 0.01A resolution.

Walfront UT658 is one of the USB testers with the highest power capacity. It is rated 0-99999mAh and 0-1,000Wh. It can also store up to 10 groups of data and is compatible with USB 2.0 and 3.0.

Pros:

• Protect charging equipment
• Monitors charging efficiency
• Easy to carry
• Stores up to 10 groups of data
• Large screen displays voltage, current, power, capacity, and voltage reading

Cons:

• Relatively big as a USB tester

6. Yogre USB Tester

Yogre USB 3.0 tester is a premium quality low-cost solution to examine the USB charging voltage and current instantly. It’s lightweight, small size, durable, and extremely portable. No extra cables or power sources are needed to operate. It supports the USB interface with electronic devices ranging from 3V-30V and 0.00-5.10 A.

This USB tester is extensively utilized in the scrutiny of 3C digital peripheral solutions. This device successfully ensures the protection of our digital devices. It has a voltage measurement resolution of 0.01 V along with a current measurement resolution of 0.01A. It can operate in a significant temperature range of from -10⁰C up to 60⁰C.

On this tester, you could simply set up your timer off or full charge power off. That means the tester has two functions, either you can set a timer to turn off the tester or turn the tester off automatically when the charging is full. It will automatically cut the power with a notification sound. Real-time monitoring of voltage and current values can be done through this, but when you set a specific value the tester will give a beep and power off automatically until the value falls or exceed above that.

Pros:

• High quality with low cost
• Small size with the dimensions of 3.78 × 1.89 × 0.98 inches
• Good capacity measurement range of 0-99999mAh

Cons:

• It cannot detect the fast-charging feature
• Dull display
• Low voltage measuring resolution

7. Eversame USB C Power Meter Tester

Eversame is a multifunctional tool capable of charging, data wire resistance value testing, cable impedance measurement, and data storage. It allows you to check the charge performance of a USB output port and test a power bank’s capacity and electric energy.

This voltage tester should be one of the best to include on your list. It gives you the best value for money with many features and is compact and portable. The device is designed with a high-grade LCD monitor and an intuitive user interface, making it interactive.

• Capacity range: 0-99999mAh;
• Energy range: 0-99999mWh;
• Load impedance range: 1.5Ω-9999.9Ω;
• Time range: 0-99 hours 59 minutes 59 seconds;
• Temperature measurement error: ±3°C/±6°F;
• Delay off screen time: 0-9 minutes;
• Current curve range: 0-3A;
• Temperature Range: -10°C to 100°C/0°F to 200°F;
• Voltage curve range: 4.5V-24V;
• Voltage resolution: 0.01V;
• Current resolution: 0.001A;
• Voltage measurement accuracy: ±0.2%;
• Current measurement accuracy: ±0.8%;

Pros:

• Intuitive user interface
• Safe and reliable for monitoring voltages and current
• Supports QC2.0/QC3.0
• Wide voltage measurement range

Cons:

• The design could have been more compact

8. Eversame 2-in-1 USB Tester

Eversame 2-in-1 USB Tester is a cost-effective option for you. It has many features and can do the job quite well. You can use this USB tester to measure the capacity of your mobile battery, charger bank, and charging speed.

This USB tester is capable of bidirectional current detection – measures both negative and positive currents. The readings can then be displayed on the TFT screen. You can use it for first charging and checking the charging speed and quality of a USB cable.

• Capacity range: 0-99999mAh;
• Energy range: 0-99999mWh;
• Load impedance range: 1.5Ω-9999.9Ω;
• Current curve range: 0-5.1A;
• Temperature Range: 0°C to 80°C/32°F to 176°F;
• Voltage curve range: 3.6V-32V;
• Voltage resolution: 0.01V;
• Current resolution: 0.001A;

Pros:

• Supports screen rotation
• Overcurrent and overvoltage protection and warning
• Multipurpose – suits many applications
• Wide voltage detection range
• Affordable

Cons:

• Relatively big for a USB tester

9. MakerHawk USB Tester

High quality, reasonable price, and small size make this USB tester more attractive for buyers. There is no need for any type of professional wiring. You just plug in this MakerHawk USB tester and you could directly see the charging status, capacity, and USB power supply in real-time.

This device also comes up with a good quality alarm system to protect the device from over-voltage, over-current, under-voltage, and under current conditions. The intelligent automatic power-off system makes it more appealing when considering the high-quality tester at a reasonable price.

This device has an operating range of 50-100MA. It can store mAH power-off for a maximum of 9 different groups of operating devices to keep the data and compare it to find out whether the capacitance of the charging gadget is true or false.

With the HD color display screen, the data on the tester’s screen will be brighter and clearer. It is compatible with QC 2.0/3.0 and PD protocol and intelligently detects fast charging as well.

Pros:

• Good quality with a reasonable price
• Intelligent memory charging capacity
• Temperature Measurement

Cons:

• Provides rough details about the capacitance
• Limited Features
• Low refreshing rate

10. MakerHawk Multimeter USB Tester

High-resolution voltage, current resistance meter supported with regular USB and Type-C port, DC 4.0- 24V 5.00A USB charger, HD IPS color screen display, and much more comes up with this small high-tech gadget.

The USB input port can withstand a high current range up to 5A supported with high power input. It consists of an internal as well as external NTC temperature sensor which enables us to identify the temperature during measuring or providing the high power to the output. These sensors have a wide range of measurements: -20⁰C – +120⁰C.

It is recommended to use Type-C port when high power input or output is needed. This device comes up with a wide IPS HD color LCD screen for data monitoring from different ports at the same time. It has the capacity record of 0-99999Ah along with 0-99999Wh.

The IPS screen will help you see the reading clearly even though you are outdoor.

Built-in functional protect your devices in under-voltage and an over-current situation. Precision, accuracy, high resolution of 0.00001 for both current and voltage measurement makes this device more appealing for testing pricy equipment.

Pros:

• Exception level of resolution
• Internal / External Temperature sensors
• Can perform High current and high-power operations
• Automatic recovery of voltage

Cons:

• Only Type-C can handle high power
• Large size 2.64 × 1.5 × 0.47 inches
• High Self-power consumption

Buying Guide of USB Tester

We have spent many hours researching, comparing, and deciding the best USB tester based on all specifications and needs on the market. But if you still want to look for other USB testers elsewhere, this buying guide should help you. Consider the following features:

1. Ease of Operation

The best product should be plug-and-play unless you want to do other complex tasks with a USB tester. Just hook it up to a USB port, and you get all the data on display without pressing anything.

However, more advanced USB testers have additional functions you can access by navigating its menu. Still, the user interface should be friendly to make it easy to get the readings.

2. Voltage and Current Measurement Range

This depends on the intended application, but always choose a USB tester with wide voltage and current measurement ranges. Also, consider the power output from the device you want to buy. This is crucial if you want to use it to charge your other devices.

3. Safety Features

A reliable USB tester should have safety features. Overcurrent and overvoltage protection ensures you don’t ruin the device. Some will alert you if you are just about to exceed voltage or current limits. Also, consider a USB tester that protects any equipment connected to it. You don’t want to ruin your phone if you connect it to a USB charger, do you?

4. Refresh Rate

This is the time a USB tester takes to update readings on its display. The shorter it takes, the better it will be, especially if you are testing for a USB port or cable quality.

5. Industry Standards

USB ports in different equipment and devices vary. They have varying voltage and current ratings. So, the USB tester you buy should conform to the standards of what you want to test. If the USB tester is specified as USB 3.1, check if it supports USB 3.0 or USB 2.0. Current, voltage, and data transfer rates in these are all different. You should also check if it is a USB type A, B, or C and buy what matches the device you want to test.

6. Durability and Size

Determine the size of the USB tester you want to buy. This is purely a personal preference. But when it comes to durability, you want to go for the best. Consider the material and general built quality if you want to buy a long-lasting USB tester. Ones with ABS casing are the best in this case, though they can look bulky sometimes.

Conclusion

The above-mentioned USB tester is the best solution to test your electronic devices/components. They vary in price according to the number of features and resolution of recorded data. These testers are widely used in testing single small devices and provide real-time monitoring of data which is helpful in the protection of pricy devices.

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FullyInstrumented is motorized by several authors with several backgrounds such as Electronic Instrument, Electrical & Electronic Engineering, Mechanical Engineering, Quality Control Engineer, etc. More…

14 Best USB testers (Test & Monitor USB Port/Cable 2023)

Sometimes we really need to know if it’s the bad USB port or the bad USB wire, or whether there is something going wrong with our device.

Before declaring your device the bad one. It is really useful to first check if it’s the USB port that is causing the problem or if it’s the USB cable that is acting naughty.

There are so many ways you can test your USB port and cable. But a preferred way to check if your USB port is working the way it is supposed to be is by using one of the best USB testers out there on the market.

People use different words for this device, i.e. people often call it USB voltage tester, USB power meter, or USB multimeter. You are free to use any name you like, the functionality is the same.

Any best USB meter should be capable of checking the voltages across the USB port, current from the port to load, and should give you the charge storage capacity measure in mAh. These are the basic quantities but USB meters are not limited to these. You can have a meter with time measuring capability as well.

Here in this post, I try my knowledge best to help you find out the best USB testers no matter if you are a beginner, hobbyist, student, or professional. Please keep in mind, that my emphasis will be on high-quality USB testers.

Hopefully, this post will help you and you will enjoy it.

Table of Contents

Choosing the right USB tester to test USB Ports and Cables

USB tester is a simple tool. There is not that much to look for in it to get it right. But here are my general key points that you should keep in mind while deciding which meter is the best USB tester. Of course, I will apply these things to all the models that you will see in this post later on.

a. Easy Operations

Operation is the key to the USB meter. Fancy operating systems and fancy looks will compromise the accuracy of results until you want to pay a high price for a decent one.

Any USB multimeter should have a very easy operation, i.e. you connect or plug it into the USB port and in a matter of seconds, you see the required results. That’s set. There is no need for the mode selection process, no need to press buttons to get to other parameters.

b. Friendly UI

By friendly UI (user interface) I mean everything should be very clear and bold. You know a lot of USB testers try to look fancy so that they can trigger buyers’ psychology. But in reality, keeping the performance in mind, there is no need for any fancy things or colors.

So your selection of the best USB tester should be like this: it has a clear big display with big bold readings that you can note from any angle and in any light.

c. Decent refresh rate

Refresh rate is the time the USB meter takes to refresh its readings on the display. It should be very very low like in milli seconds or ideally in micro-seconds.

d. Safety features i.e. over current/voltage protection

It is important to see what is the output at the USB port so that you can assure the safety of our connecting device. By safety, I mean how much voltage our connecting device safely bears or how much current it can draw from the source.

Your USB meter should be capable of bearing these voltages themselves first. Like if the voltages go beyond the rating of the USB tester. The USB tester must automatically turn itself off to protect itself from burning down. The same goes for the case of overcurrent flow.

e. Bi-directly current flow support (totally optional)

As the name suggests the current can flow in both directions in such USB testers. What this means is like no matter you are taking the USB output port or input port both can act as input or output.

The port doesn’t matter at all. What matters is that the USB meter will automatically show you from which port current is flowing to which port. It may be confusing at the beginning so that is why I am making it optional.

f. Industry standard Voltage and Current ratings

Like it will not make any sense if you buy a meter that has voltage and current ratings of no use. The industry standard rating for any USB port are the following:

• Signal: 5V (DC)
• Max Voltage (DC): 5.25 V (USB 1.0 to 3.1) 5.50 V (USB 2.0) 6.50 V (USB BC 1.1) 6.00 V (USB BC 1.2) 21.50 V (USB PD to 2.0) 50.90 V (USB PD 3.1)
• Max Current (DC): 0.5 A (USB 2.0) 0.9 A (USB 3.0) 1.5 A (USB BC 1.2) 3.0 A (USB-C) 5.0 A (USB PD)

List of amazing best USB testers

I think I have shared all the information that I have about how to select the best USB tester. Now let have look at some USB testers.

Also, keep in mind, I am not going to repeatedly talk about the above features of a USB tester over again and again. They are applied to all the below mentioned models. Also, I am not going to add some fancy-looking models that you will see a bunch of them online. Look man, I am an engineer and technical terms are more romantic to me than the looks.

1. PowerJive USB meter

Staring our list with very clean and basic USB meter i.e. PowerJive USB meter. It has options for current, voltage, and capacity measurements with amazing accuracy of 1%.

Important features:

• Best for troubleshooting charging adapters and cables
• Decent voltage (3 – 15V, DC) and current (0.05 – 3.5A, DC) ratings
• Amazing voltage resolution of 0.01V
• Protection feature for your connected devices.

If this meter has got your attention. Here is the link, PowerJive USB tester (Amazon Link), to find out more about it. The best part is, it is bi-directional and has a very low price tag.

2. Plugable USB C Tester

USB C is the future of USB connections. Because this type of USB is giving so much data transfer with hassle-free connections.

So if you have modern devices then chances are they are using USB Type C ports. To test those you need this “Plugable USB C tester”.

If you focus on the above picture which shows the current direction which is a very useful feature to have. The amazing part of this tester is, it comes with a 2-years warranty.

So if this guy got your attention. Then there is the link, USB C Tester (Amazon link), to follow for your own further queries and research.

3. Klien Tools ET920

Klien Tools is a very famous US manufacturer. They are making high-quality electrical instruments for decades. The USB tester from this brand is a little pricy but it has options for USB A and C ports testing.

Important features of this best USB meter:

• You can test both ports USB A, and C types.
• High quality.
• Measures voltage, 3 to 20V DC
• Measures current, for USB A 0.05 to 3A, and for USB C 0.05 to 5A
• Accuracy of 1%.
• Best for monitoring ports for up to 1000hrs which is just amazing.
• Reading storing option.
• Very easy to operate.
• It has overvoltage and overcurrent protection, so it assures safety for your connecting devices.
• It also includes Qualcomm Quick Charge ports
• It is lightweight, and requires no external batteries to work.

If this guy is what you need then I highly recommend it. Here is the link, ET920 (Amazon link), for your own further consideration.

4. UT658 USB Tester

The alternative to the above ET920 from Klien Tools is this USB tester i.e. UT658. The difference is: it is a lot cheaper than the above one.

Most of you may agree with me on that this model is good looking than the above one. But we don’t care about how a device looks we are more interested in how a device can perform well.

And the performance of this meter is amazing. It has a very large display with big bold readings. The accuracy is fantastic and the best part is, it has a built-in protection system that protects your devices in overcurrent and overvoltage situations.

To know more about this USB meter. Here is the link to follow, UT658 USB Tester (Amazon link).

5. Eversame USB digital tester

The alternative to the above ET920 is this guy from the Eversame brand. This model is 2 in 2 i.e. it has USB A as well as Type C options, giving you the power to test whatever port you want to test proving it is a USB port.

Important features:

• Measure voltage: 3.6-30V (DC), this is way more than the ET920 mentioned above
• Measures current: 0-5.1A (DC), these ranges are for both USB types
• This guy has over-voltage protection, over-current protection, under-voltage protection, low energy protection, and an alarm system. Damn pretty cool.
• The display has multiple colors, making it easy to distinguish different measurements.
• It is plug and play, no need for extra wires.
• It is portable, you can carry it anywhere.
• You can monitor your iPhone, galaxy whatever you want. It has covered your back for a wide range of applications.

In summary, the Eversame USB meter (Product link) is the best USB meter with lots of features. It is amazing and can do the job pretty well. It can measure the capacity of your mobile battery, or charger bank, as well as the speed of charging.

6. AT35 USB 3.0 Tester

For those people who want to test or measure USB type 3.0 ports then the RD AT35 has got everything for you. This tester is the easiest to use.

It got load impedance calculations, a voltage range of 3.7-30V, a current range of 0-4A with a fantastic resolution of 0.001V and 0.0001A, and an amazing refresh rate of 0.5Hz.

Trust me this guy is more than you think for such a low price. Use it for testing USB cables, checking your power bank capacity, voltage, and current ratings, and so much more.

Now if this best USB tester has got your attention. Then here is the link to follow for your further research, AT35 (Amazon link).

7. Drok 300043 USB multimeter

Droke is a very famous electronics brand with a huge customer base. The USB tester of Droke i.e. 300043 is amazing and the best part of it that differentiates it from the rest is: It has two outputs. This means you can monitor two devices at the same time using one meter.

If USB C is what you desire then worry not. You can have a USB C tester as well with two outputs in this shape. If this product has existed you. Here is the link to further investigate it, Drok 300043 (Amazon link).

8. CT-3 USB Meter

Let’s talk about the USB tester that comes with PC software and with a feature customizable option. CT-3 from the AVHzy brand is a very power best USB tester with measuring options for both USB 3.1 and USB C.

It has a very beautiful bright display with big bold readings. The colors are amazing and carefully chosen for specific parameters. Here is the link to know more exciting stuff about this meter, CT-3 (Amazon link).

9. RD TC64 USB meter

TC64 is another amazing USB tester that you can use for USB type C ports and cables. The amazing part of this tester is its high-definition display.

Important features:

• Voltage range of 3.7-30V
• The current range of 0-4A
• Fantastic resolution of 0.001V and 0.0001A
• The refresh rate of 2 Hz

Here is the link for this product to have a look yourself, tc64 USB tester (Amazon link).

10. MakerHawk USB C tester

As I share earlier USC C is the future of USB ports. And that’s why every USB tester is moving towards this technology. MakerHack has done a great job of providing us with their amazing UCB C tester.

Important Features:

• Robust interface
• Sensitive touch, (built-in aluminum alloy plate, anti-friction, and anti-rust for repeated use)
• Type-C interface is fully reinforced
• Internal use of a professional instrument sampling circuit, coupled with a unique precision algorithm, ensures the accuracy and stability of the product at the hardware and software level

Follow the link to know more about this exciting tester, MakerHawk (Amazon Link).

11. Flight-Sky USB meter

Flight-Sky is another popular brand in the electronics field. The USB tester from this brand is very simple and easy to use with the current flow arrow indicator.

Important features:

• Bright and intuitive OLED display
• Measures current, voltage and watt as well as what direction that received by your USB C Device without interrupting operation by Pass-Through charging.
• Monitor your power to ensure your devices is receiving adequate and safe charging

If this simple USB current tester has got your attention and you want to know more about it. Then, follow this link, Flight-Sky tester (Amazon link).

Is there any alternative available?

Of course, there are a lot of other models out there. You can search and talk to people if you are not sure. Just don’t buy a crapy product only because of the low price tag or fancy finishing.

What is a USB tester/multimeter?

As the name suggests, a USB tester is a tool by which we can test the USB port. It is used to check the voltage across the port, and monitor the current when a load is connected to it.

It also gives you power, capacity, and resistance measurements as well. So, if your USB port is behaving bitchy, and you don’t know why this guy can tell you what’s going wrong with your port.

How to use a USB tester/meter

Using a USB meter or tester is very easy. Though each model might have slightly different features, I am sure you will be able to crack that by playing a little with the device.

I don’t know but when you get an electronics device in your hand and just play with it for a while, automatically you figure it out how to use the device in a proper way.

So, let me share the general method of how you can use a USB meter for testing and other stuff. Follow the following steps.

• First, carefully observe the ports and figure out which side is input and which one is the output
• Usually, the input and output ports are mentioned
• Plug the input port into the port you want to monitor or test.
• After plugging the device will be turned On automatically
• The first parameter you must notice is the voltage, because the current is shown when you connect the load.
• When you connect the load i.e. your mobile or whatever, you will be able to see every parameter on the screen

This way you can use any tester for your measurements. There will be extra features like reading storing, and reset options. But I am sure you will figure out all those things yourself very easily.

Testing USB ports using a USB tester

After connecting the load and following the above-mentioned steps. The best way to check if the port is working fine or not is by following the below steps.

• See if the voltage showing on the display of the USB meter is what you were expecting it to be.
• Usually, USB ports have 5V across them, see if it is the case.
• If the voltage is not what it should be, then your port has a problem

Final words on best USB testers

There are many ways you can check the voltage across the USB port, and the current through it, and by producing these two parameters to get power.

You can use a simple multimeter to accomplish the above task. But wait, what if I tell you there is a dedicated USB multimeter for that. You wouldn’t believe me.

Trust me there is a USB multimeter, called a USB digital tester, a USB meter, USB power meter. It doesn’t matter what you call it, the point is using the best USB tester you can monitor your ports, test, and check for the faulty ones.

This article is all about testing USB ports by a tester. There presented a recommended list using which you can buy the one for you.

I wrote this conclusion for the people who start from the conclusion and then decide to read the entire article. If you are that guy, now you can read the article. If you are the guy making it this far, thank you for the time.