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UNI-T UT191T Multimeter Review 2023

Are you looking for a reliable multimeter that does it all? Then check out our UNI-T UT191T multimeter review.

The UNI-T UT191T is essential for any engineer, contractor, hobbyist or DIYer. It’s perfect for those who need precise measurements with accuracy and ease of use. With its various features and functions, the UNI-T UT191T can measure voltage, current, resistance and more in one convenient handheld device!  

You’ll no longer have to worry about inaccurate readings when you use this professional-grade multimeter – its results are always dependable and accurate. Plus, it offers all the convenience of being lightweight and portable, so you can take your measurements wherever life takes you! 

Read our UNI-T multimeter review now and find out why the UNI-T UT191T is one of the best multimeters on the market today! Get yours now to start measuring with precision!

Key Features

  • Measurement setting saved after power reset 
  • IP65, 2m drop proof
  • True RMS/Peak value measurement 
  • Auto backlight
  • 20A current measurement 
  • LoZ AC measurement
  • Precise temperature measurement with a resolution of 0.1℃

Things That’s Included

  • 2x Test leads
  • User’s manual (in English)
  • K-type thermocouple

UNI-T UT191T Multimeter Review | Basic Info

Looking for a reliable multimeter that won’t break the bank? Look no further than the UNI-T UT133B! This compact, handheld device is perfect for all your basic measuring needs. 

Whether you need to measure DC or AC current and voltage or check resistance and capacity, the UT133B has you covered. 

And with a price tag that will fill your wallet, you can rest assured you’re getting real value for your money. The UT133B is the perfect addition to any toolkit, small in size but big on features.

The 6000 counts display should cover all your basic needs, and the over-current/voltage alarm is a real lifesaver. No more guessing when something’s gone too far. Plus, the automatic idle mode is great if you’re more energy-conscious. 

You can switch it off manually if you want, but why bother? And if you happen to drop it – no worries. This bad boy can handle a tumble from 2 meters. Can you say the same for your phone? To learn more about the Fluke series, you can click here.

UNI-T UT191T Multimeter Review | General Specification

Display Count6000
Sampling Rating3 times/second
Analog Bar Graph31 seconds
AC Voltage Frequency Response 45Hz~400Hz
AC Current Frequency Response45Hz~400Hz
Power9V battery
Size180mm x 87mm x 59mm
Temperature-40℃~400℃ (0.1°C resolution)

UNI-T UT191T Multimeter Review | Features

1- Display

Have you ever had those moments when you’re deep in the middle of a project, and suddenly your trusty multimeter shows signs of distress? The UNI-T UT191T Multimeter Display has got your back. Its display starts to fade at around 3.4V and disappears at 2.2V, but don’t worry. 

Your readings will still be accurate until the display fades. Plus, with a good viewing angle and a display update of around three times per second, you won’t miss a beat. 

And if you still are working with some juice left, the battery symbol shows empty at 6.2V, giving you plenty of warning before running out of power.

2- True RMS/Peak value measurement

Have you ever needed help getting accurate measurements with your current multimeter? The UNI-T UT191T might be the solution to your problem. 

With its True RMS/Peak value measurement feature, this multimeter can provide you with precise readings to help identify any electrical issues or inconsistencies. Don’t settle for less regarding your tools – upgrade to the UT191T and experience the difference firsthand.

3- Auto Backlight

The UNI-T UT191T Multimeter is an impressive tool that makes it easy for technicians to measure various electrical parameters easily. It has a convenient backlight feature that automatically turns on when in dimly lit environments, allowing for easy data readability even without light. 

The bonus of a flashlight also makes it versatile for use in areas with poor visibility. It’s important to note that the backlight and flashlight will begin to fade at 4V and disappear completely at 2.7V. 

At that point, the auto power off feature will take over and shut down the flashlight. This feature-rich device is necessary for any professional needing a reliable and efficient multimeter.

At that point, the auto power off feature will take over and shut down the flashlight. This feature-rich device is necessary for any professional needing a reliable and efficient multimeter.

At that point, the auto power off feature will take over and shut down the flashlight. This feature-rich device is necessary for any professional needing a reliable and efficient multimeter.

At that point, the auto power off feature will take over and shut down the flashlight. This feature-rich device is necessary for any professional needing a reliable and efficient multimeter.If you wanted to learn Fluke vs klein then,you can click here.

4- LoZ AC Measurement

The UNI-T UT191T Multimeter is a top-of-the-line tool every electrician or engineer would love to have in their arsenal. It boasts a remarkable feature differentiates it from other multimeters available in the market – the LoZ AC measurement feature. 

LoZ stands for Low input impedance, meaning the device uses a lower resistance (300kOhm) to measure voltage. This means that the UT191T’s measurement range is always 600VAC, no matter what. 

This feature is particularly helpful when measuring voltage in circuits with electronic ballasts or dimmer switches, where regular multimeters can potentially register false readings due to leakage currents. 

The UT191T’s LoZ AC measurement feature solves this problem by providing accurate daily readings.

5- Volt And Frequency Measurements

The UNI-T UT191T Multimeter offers accurate readings for both voltage and frequency measurements. One particularly helpful feature is the MilliVolt range, which remembers the last AC/DC setting for added convenience. 

However, it’s important to note that the 1V AC reading is 5% down at 2kHz, and the 7V AC reading is 5% down at 800Hz when LPF is active. The AC frequency range requires a zero crossing, while the frequency input can handle at least +/-9.8V offset at 0.1VAC and has a range of 1.1Hz to 1.1MHz. 

Ultimately, with its vast frequency range and advanced capabilities, the UNI-T UT191T Multimeter is a great choice for professionals seeking accurate voltage and frequency measurements.

6- Current Measurements

The UNI-T UT191T Multimeter is reliable for those requiring precise current measurements. The device offers a 20A range with an audible alarm that sounds above 10A, ensuring that users are alerted if there is a surge in current flow. 

Additionally, the current ranges remember whether AC or DC settings were used, making it easier to switch between the two. The 20A range is fused with an 11A/1000V 10x38mm fuse, while the mAuA range has a 0.6A/600V 6.3x32mm fuse. 

Furthermore, the peak option can be selected for AC. Whether you’re a professional or a DIY enthusiast, the UNI-T UT191T Multimeter is a must-have for your toolkit.

7- Ohm, Continuity, Diode and Capacitance Measurement

The UNI-T UT191T Multimeter is a versatile tool that can measure ohm, continuity, diode, and capacitance. When measuring an ohm reading of 100 ohms, it takes approximately 2.8 seconds to get a reading. 

The ohm voltage is 1.0V when open and 0.33mA when shorted. Continuity measurements are incredibly fast, taking less than 5ms to get a reading. The meter beeps when the resistance is below 50ohm, and the voltage is 1.0V when open and 0.33mA when shorted. 

When measuring diodes, the range uses 3.2V, with a full display of 1.200V at 0.86mA. The maximum current is 1.4mA when shorted. Capacitance measurements take time, but with the UNI-T UT191T, 10uF takes roughly 2.5 seconds, while 11000uF takes approximately 6.5 seconds. 

With its impressive capabilities and reliable performance, the UNI-T UT191T is an ideal tool for those needing precise measurements.

8- Bar Graph

The UNI-T UT191T Multimeter is more than just your average device for measuring current, voltage, and resistance. It also features a bar graph that updates at the same speed as the display, giving you real-time insights into the data you collect. 

This makes it much easier to keep track of changes in electrical levels as they happen, providing more accurate results and a faster overall testing experience.

9- Protection

When it comes to choosing the right multimeter for your electrical work, protection is key. The UNI-T UT191T multimeter offers exceptional overload protection of 600V, ensuring your device won’t be damaged during a power surge. 

Plus, with input protection of 600VDC/600VAC and a CAT III 600V rating, you can trust that you are safe while taking readings. 

And don’t worry about accidental drops – the UT191T is IP65 rated and 2m drop proof. Keep your focus on the task, knowing your equipment is up to the task.


  • High current range
  • CE/GS/cTUVus certified
  • CAT III 600V
  • IP65 waterproof
  • Suitable for use in damp and dusty environments
  • Supports accurate and precise temperature measurement


  • Not as precise as other IP65 meters

Things That Are Unimpressive In UNI-T UT191T

The UNI-T UT191T is a popular tester among electronics enthusiasts due to its range of functions and user-friendly interface. However, there are a few areas where it needs to be improved. One is the need to test digital capacitors, which can be a deal-breaker for some users. 

Additionally, SMD mosfet testing is not available on this device. While the UNI-T UT191T is a proper tool overall, these limitations may be a turn-off for those who want a more comprehensive testing experience. 

Another downside is its price, which is higher compared to other testers in the market. Despite these drawbacks, the UNI-T UT191T is still a reliable and effective tool for most electronics testing needs.

Who Needs UNI-T UT191T?

The UNI-T UT191T is a highly advanced professional multimeter designed to suit the needs of industrial users. With features such as true TRMS, Bar graph, and data logging capability, this multimeter is perfect for those requiring precise readings. 

Professionals working in industrial settings, including electricians, maintenance technicians, and HVAC specialists, will find the UT191T invaluable in their daily tasks. 

Its durable design and rugged construction ensure it can withstand even the toughest conditions, making it a reliable and must-have tool for anyone who requires top-quality performance from their equipment. I made the list of best budget multimeters you can check out.

Users’ Opinion About UNI-T UT191T Digital Multimeter

If you’re looking for a reliable digital multimeter, the UNI-T UT191T is worth considering. It boasts a solid 4.2 rating on Amazon, and users have generally been very positive in their feedback. 

One of the big draws of this device that its users loved is that all functions are included and easy to access. The construction of the UT191T is also highly impressive, with users noting that the plugs and leads likely last for the entire lifespan of the unit. The product comes well-packaged and features a clear, detailed user guide to help you get started. 

Another handy feature is the backlight, which is perfect for low-light situations. Additionally, the clip/stand-up feature is highly convenient for various settings. Overall, the UT191T is an excellent choice among the vast array of multimeters out there.

UNI-T UT191T Multimeter Review | Final Verdict 

The UNI-T UT191T Multimeter isn’t just a basic tool for home inspections and quick fixes; with its advanced features, you can also use it for professional quality work. From power dissipation capacity to frequency measurements, the UT191T has you covered no matter the situation. 

Portability is also key, with its visual alarm system alerting you to the slightest differences. With all that in mind, the UNI-T UT191T Multimeter is a great tool for professionals and hobbyists, making it an invaluable part of any toolbox. 

Whether you’re doing some DIY around the house, solving electrical problems in your shop or troubleshooting an electronics project, this multimeter can do it all! So don’t hesitate – grab your own UNI-T UT191T Multimeter today and immediately utilise its advanced features!

UNI-T UT191T Multimeter Review FAQs

1- What is the use of a Uni-T multimeter?

With the ability to measure AC/DC Voltage and Current, Resistance, Diode, Continuity Buzzer, Capacitance, Frequency, and more, you’ll be able to tackle any project easily. Plus, with an RS232C or USB standard serial port, you can easily transfer your data to your computer for further analysis. Other convenient features include data hold, relative mode, peak measurement, low battery display, and a display backlight. 

2- Who is the owner of Uni-T?

Meet the mastermind behind uni-T – Riz Khan, a trailblazer in the tech industry. Through his vision and innovation, he has created a groundbreaking platform that is changing the game for education and career advancement. With uni-T, learners can access endless opportunities and resources to help them reach their goals. And it’s all thanks to the genius of Riz Khan.