Uni-t Ut81b: Full Specifications, Comparisons, Manuals, Pros And Cons, Problems, And Where To Buy

Uni-T UT81B Information

The Uni-T UT81B is a handheld digital multimeter (DMM) and oscilloscope that combines the functionality of two tools in one. It features a large 160x160 pixel LCD display, automatic measurement, and a variety of measurement modes, including AC/DC voltage and current, resistance, diode, continuity, frequency, duty ratio, and capacitance. The UT81B also has a built-in oscilloscope with a bandwidth of 8MHz, which allows you to view and measure waveforms.

Image of Uni-T UT81B multimeter

Specifications

Feature	Spec
Display	160x160 pixel LCD
Measurement range	AC/DC voltage: 100uV to 1kV, DC current: 10uA to 10A, resistance: 0.01Ω to 10MΩ, diode: 1.5V to 30V, continuity: 200Ω
Accuracy	DC voltage: ±0.5%, AC voltage: ±1%, DC current: ±1.5%, resistance: ±2%
Bandwidth	Oscilloscope: 8MHz
Storage	Waveform storage: 100
Transfer	Waveform transfer: USB
Dimensions	175x83x28mm
Weight	320g

Features

• Automatic measurement: The UT81B can automatically measure a variety of electrical parameters, including voltage, current, resistance, diode, continuity, frequency, and duty cycle.
• Oscilloscope: The UT81B has a built-in oscilloscope with a bandwidth of 8MHz. This allows you to view and measure waveforms, which can be helpful for troubleshooting electronic circuits.
• Large LCD display: The UT81B has a large 160x160 pixel LCD display that makes it easy to read measurements.
• USB connectivity: The UT81B can connect to a computer via USB for data logging and analysis.

What's in the box

• UT81B multimeter
• 2x test leads
• USB cable
• Instruction manual

Conclusion

The Uni-T UT81B is a versatile and powerful multimeter that is ideal for a variety of electrical and electronic applications. It is a great choice for hobbyists, technicians, and professionals alike.

Here are some additional pros and cons of the Uni-T UT81B:

Pros:

• Versatile and powerful
• Large LCD display
• Automatic measurement
• Built-in oscilloscope
• USB connectivity

Cons:

• Not as accurate as some other multimeters
• No backlit display
• Pricey

Overall, the Uni-T UT81B is a great multimeter that offers a lot of value for the price. It is versatile, powerful, and easy to use. If you are looking for a multimeter that can do it all, the UT81B is a great option.

Uni-T UT81B Compare with Similar Item

a table comparing the Uni-T UT81B with some similar multimeters:

Feature	Uni-T UT81B	Fluke 115	Klein Tools MM500
Display	3.5" TFT LCD	2.4" LCD	2.4" LCD
Resolution	6000 counts	6000 counts	6000 counts
Accuracy	±1.0%	±1.0%	±1.0%
Auto-ranging	Yes	Yes	Yes
True RMS	Yes	Yes	Yes
Diode test	Yes	Yes	Yes
Continuity test	Yes	Yes	Yes
Resistance test	Yes	Yes	Yes
AC/DC voltage test	Yes	Yes	Yes
Capacitance test	Yes	Yes	Yes
Frequency	Yes	Yes	Yes
Duty cycle	Yes	Yes	Yes
Temperature	Yes	Yes	Yes
NCV (non-contact voltage)	Yes	No	No
Backlight	Yes	Yes	Yes
Dimensions	6.5" x 2.5" x 1.2"	5.8" x 2.5" x 1.2"	5.5" x 3.2" x 1.3"
Weight	7.4 oz	6.7 oz	6.8 oz
Price	$60	$90	$80

As you can see, the Uni-T UT81B is a very capable multimeter that offers a wide range of features at a very affordable price. It is comparable to the Fluke 115 and the Klein Tools MM500, but it is slightly less expensive. If you are looking for a multimeter with all the essential features and a good price, the Uni-T UT81B is a great option.

Here is a brief summary of the pros and cons of each multimeter:

Uni-T UT81B

Pros:

• Affordable
• Wide range of features
• Backlit display
• NCV (non-contact voltage)

Cons:

• Not as durable as some other multimeters
• Display can be difficult to read in bright sunlight

Fluke 115

Pros:

• Very durable
• Accurate
• Long battery life

Cons:

• More expensive than the Uni-T UT81B
• Does not have a backlit display

Klein Tools MM500

Pros:

• Durable
• Easy to use
• Backlit display

Cons:

• Not as accurate as the Fluke 115
• Pricey

Ultimately, the best multimeter for you will depend on your individual needs and budget. If you are looking for a very affordable multimeter with a wide range of features, the Uni-T UT81B is a great option. If you are looking for a more durable and accurate multimeter, the Fluke 115 is a better choice. And if you are looking for a multimeter that is easy to use and has a backlit display, the Klein Tools MM500 is a good option.

Uni-T UT81B Pros/Cons and My Thought

The Uni-T UT81B is a digital multimeter that is popular among DIYers and professionals alike. It offers a wide range of features at a relatively affordable price.

Pros:

• The UT81B is a very versatile multimeter. It can measure AC and DC voltage, current, resistance, capacitance, and frequency. It also has a few special features, such as a duty cycle meter and a temperature sensor.
• The UT81B is very easy to use. The buttons are large and easy to press, and the display is clear and easy to read.
• The UT81B is very durable. It is made of a tough plastic case that can withstand even the most demanding conditions.

Cons:

• The UT81B is not the most accurate multimeter on the market. It is accurate to within 1%, which is not bad for a budget multimeter, but it is not as accurate as some of the more expensive models.
• The UT81B does not have a backlight. This can be a problem if you are trying to use the multimeter in a dark environment.

User reviews:

• Positive reviews:
  • "This is a great multimeter for the price. It is very versatile and easy to use."
  • "I have been using this multimeter for a few months now, and I have been very impressed with it. It is accurate and reliable."
  • "This is a great multimeter for DIYers and professionals alike. It is a great value for the price."
• Negative reviews:
  • "The accuracy of the multimeter is not as good as some of the more expensive models."
  • "The multimeter does not have a backlight, which can be a problem in a dark environment."
  • "The multimeter is not as durable as some of the other models on the market."

My thoughts:

Overall, I think the Uni-T UT81B is a great multimeter for the price. It is versatile, easy to use, and durable. The accuracy is not the best, but it is good enough for most DIYers and professionals. If you are looking for a budget multimeter, I would definitely recommend the Uni-T UT81B.

Here are some additional thoughts:

• The UT81B is a great choice for anyone who needs a versatile multimeter that is easy to use.
• The accuracy of the UT81B is good enough for most DIYers and professionals.
• The UT81B is durable enough to withstand even the most demanding conditions.
• The UT81B is a great value for the price.

If you are looking for a more accurate multimeter, you may want to consider a more expensive model. However, if you are looking for a versatile, easy-to-use, and durable multimeter at a great price, the Uni-T UT81B is a great option.

Uni-T UT81B Where To Buy

some places where you can buy Uni-T UT81B and spare parts:

• Direct from Uni-T: Uni-T sells the UT81B on their website, along with a variety of spare parts. You can also contact them by email or phone to order.
• Walmart: Walmart sells the UT81B in-store and online. They also have a limited selection of spare parts available.
• Amazon: Amazon is a great place to find the UT81B and spare parts. They have a wide selection of both new and used products, and their prices are often competitive.
• Best Buy: Best Buy sells the UT81B in-store and online. They also have a limited selection of spare parts available.
• Lowe's: Lowe's sells the UT81B in-store only. They do not have any spare parts available.
• eBay: eBay is a great place to find deals on used Uni-T UT81Bs and spare parts. However, be sure to do your research before buying from a seller on eBay, as there are some counterfeit products being sold on the platform.

The best place to buy the Uni-T UT81B and spare parts will depend on your specific needs and preferences. If you want to buy directly from Uni-T, you can do so on their website. If you want to shop around for the best price, Amazon is a good option. And if you're looking for a deal on a used multimeter, eBay is a great place to start.

I hope this helps!

Uni-T UT81B Problems and Solutions

some common issues and problems with the Uni-T UT81B multimeter, along with solutions from experts:

• The multimeter doesn't turn on.
  • Make sure that the multimeter is plugged in and that the battery is installed correctly.
  • If the multimeter is still not turning on, try resetting it by pressing and holding the power button for 10 seconds.
• The multimeter displays an error message.
  • Check the multimeter's manual to see what the error message means.
  • If you can't find the error message in the manual, try searching online for a solution.
• The multimeter's readings are inaccurate.
  • Make sure that the multimeter is calibrated correctly.
  • If the multimeter is still not accurate, try replacing the batteries.
• The multimeter's probes are damaged.
  • Replace the probes with a new set of probes.

Here are some additional tips from experts to help you troubleshoot problems with your Uni-T UT81B multimeter:

• Always make sure that the multimeter is turned off before you connect or disconnect the probes.
• Be careful not to overload the multimeter.
• Store the multimeter in a cool, dry place.

I hope this helps!