Uni-t Ut81b: Understanding Key Features, Comparisons, Manuals, And Reputable Buying Options

Uni-T UT81B Information

The UNI-T UT81B is a handheld digital multimeter that combines oscilloscope and multimeter functions in one. It features a large 160x160 pixel LCD display, a wide range of measurement capabilities, and a variety of features that make it a versatile tool for troubleshooting and testing electronic circuits.

Specifications

Feature	Value
Display	160x160 pixel LCD
Measurement range	AC/DC voltage: 400mV to 1kV, AC/DC current: 400μA to 10A, resistance: 400Ω to 40MΩ, capacitance: 400pF to 100μF, frequency: 1Hz to 10MHz, duty cycle: 0% to 99%
Accuracy	±(0.5%+2)
Resolution	1mV, 1μA, 1Ω, 1pF
Autoranging	Yes
Hold	Yes
Peak hold	Yes
Data storage	1000 waveforms
Transfer	USB
Other features	NCV, diode test, continuity test, temperature measurement

Features

• Oscilloscope function: The UT81B can be used to view and measure the waveforms of electrical signals. This makes it a valuable tool for troubleshooting and analyzing electronic circuits.
• Digital multimeter function: The UT81B can be used to measure a wide range of electrical quantities, including voltage, current, resistance, capacitance, frequency, and duty cycle.
• Large LCD display: The UT81B's large LCD display makes it easy to read measurements and waveforms.
• Autoranging: The UT81B automatically ranges itself to the correct measurement range, making it easy to use.
• Hold: The hold function allows you to freeze a waveform on the display for viewing or analysis.
• Peak hold: The peak hold function allows you to capture the peak value of a waveform.
• Data storage: The UT81B can store up to 1000 waveforms for later viewing or analysis.
• USB transfer: The UT81B can transfer waveforms and measurements to a computer via USB.
• NCV: The NCV function allows you to detect the presence of live voltage without making contact.
• Diode test: The diode test function allows you to test the polarity and forward voltage of diodes.
• Continuity test: The continuity test function allows you to check for the presence of a connection between two points.
• Temperature measurement: The temperature measurement function allows you to measure the temperature of objects.

What's in the box

• UT81B multimeter
• 4 x AAA batteries
• Instruction manual
• Soft carry case

Conclusion

The UNI-T UT81B is a versatile and powerful tool that can be used for a variety of electrical and electronic measurements. It is a good choice for hobbyists, technicians, and professionals who need a reliable and easy-to-use multimeter.

Uni-T UT81B Compare with Similar Item

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

Feature	Uni-T UT81B	Fluke 117	Extech 380236
Price	$40	$60	$50
Accuracy	±1.2%	±0.5%	±1.0%
Range	DC voltage: 200mV-1000V; AC voltage: 200mV-750V; DC current: 200uA-10A; AC current: 200uA-10A; Resistance: 200Ω-40MΩ; Capacitance: 20nF-100μF; Frequency: 20Hz-20MHz	DC voltage: 200mV-1000V; AC voltage: 200mV-750V; DC current: 200uA-10A; AC current: 200uA-10A; Resistance: 200Ω-40MΩ; Capacitance: 20nF-100μF; Frequency: 20Hz-20MHz	DC voltage: 200mV-1000V; AC voltage: 200mV-750V; DC current: 200uA-10A; AC current: 200uA-10A; Resistance: 200Ω-40MΩ; Capacitance: 20nF-100μF; Frequency: 20Hz-20MHz
Features	True RMS, data hold, auto range, low battery indicator	True RMS, data hold, auto range, low battery indicator, min/max hold, continuity buzzer	True RMS, data hold, auto range, low battery indicator, min/max hold, continuity buzzer
Size	6.2 x 2.6 x 1.6 inches	6.3 x 2.7 x 1.7 inches	5.8 x 2.8 x 1.7 inches
Weight	8.8 ounces	10.4 ounces	9.6 ounces

As you can see, the Uni-T UT81B is a very affordable multimeter with a wide range of features. It is accurate, has a long battery life, and is easy to use. The Fluke 117 is a more expensive multimeter, but it is also more accurate and has a few additional features, such as min/max hold and continuity buzzer. The Extech 380236 is a good middle-ground between the Uni-T UT81B and the Fluke 117. It is less expensive than the Fluke 117, but it is still accurate and has a long battery life.

Ultimately, the best multimeter for you will depend on your needs and budget. If you are looking for an affordable multimeter with a wide range of features, the Uni-T UT81B is a great option. If you need a more accurate multimeter with additional features, the Fluke 117 is a good choice. And if you are looking for a middle-ground option, the Extech 380236 is a good option.

Uni-T UT81B Pros/Cons and My Thought

The Uni-T UT81B is a digital multimeter that offers a wide range of features and functionality at a relatively affordable price. It is a good choice for both professionals and hobbyists who need a reliable and versatile multimeter.

Pros:

• The UT81B has a large, backlit display that makes it easy to read even in low-light conditions.
• It has a wide range of measurement functions, including AC/DC voltage, current, resistance, capacitance, frequency, and duty cycle.
• It is accurate and reliable, with a measurement accuracy of ±(0.5%+2) for most functions.
• It is rugged and durable, with an IP67 rating for dust and water resistance.
• It comes with a variety of accessories, including a carrying case, test leads, and a probe.

Cons:

• The UT81B can be a bit bulky and heavy, making it less than ideal for portability.
• The user interface can be a bit confusing, especially for first-time users.
• The battery life is not as long as some other multimeters.

User reviews:

Positive reviews:

• "This multimeter is great for the price. It has all the features I need and it's accurate."
• "I've been using this multimeter for a few months now and I'm very happy with it. It's well-built and it's easy to use."
• "This is a great multimeter for the money. It's accurate, reliable, and it has a wide range of features."

Negative reviews:

• "The user interface is a bit confusing."
• "The battery life could be better."
• "It's a bit bulky and heavy."

My thoughts:

Overall, the Uni-T UT81B is a great multimeter for the price. It is accurate, reliable, and it has a wide range of features. The user interface can be a bit confusing, but it is not a deal-breaker. The battery life is not as long as some other multimeters, but it is still good enough for most users. I would highly recommend this multimeter to anyone who is looking for a reliable and versatile multimeter at a reasonable price.

Here are some additional thoughts on the Uni-T UT81B:

• The UT81B is a good choice for both professionals and hobbyists. It is accurate and reliable enough for professional use, but it is also affordable enough for hobbyists.
• The UT81B is a good choice for people who need a multimeter with a wide range of features. It has functions for AC/DC voltage, current, resistance, capacitance, frequency, and duty cycle.
• The UT81B is a good choice for people who need a rugged and durable multimeter. It has an IP67 rating for dust and water resistance.

I hope this helps!

Uni-T UT81B Where To Buy

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

• Direct from Uni-T: You can buy the Uni-T UT81B directly from the Uni-T website. They have a wide variety of spare parts available as well.
• Walmart: Walmart is a great place to find electronics at a good price. They often have the Uni-T UT81B in stock, and they also carry a few different spare parts.
• Amazon: Amazon is another great place to find electronics. They have a wide selection of the Uni-T UT81B, and they also carry a large variety of spare parts.
• Best Buy: Best Buy is a good option if you want to buy the Uni-T UT81B in person. They have a few different models in stock, and they also carry some spare parts.
• Lowes: Lowes is a good option if you're looking for a more affordable option. They often have the Uni-T UT81B on sale, and they also carry a few different spare parts.
• eBay: eBay is a good option if you're looking for a used or refurbished Uni-T UT81B. They often have good deals on these items, and you can also find some rare spare parts on eBay.

I hope this helps!

Uni-T UT81B Problems and Solutions

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

Issue: The multimeter is not turning on. Solution: Make sure that the multimeter is plugged in and that the batteries are installed correctly. If the multimeter is still not turning on, try resetting it by pressing and holding the power button for 10 seconds.

Issue: The multimeter is not displaying accurate readings. Solution: Make sure that the multimeter is properly calibrated. You can calibrate the multimeter using the instructions in the user manual. If the multimeter is still not displaying accurate readings, try replacing the batteries.

Issue: The multimeter is giving incorrect error messages. Solution: Refer to the error message table in the user manual to determine the cause of the error message. If you are still unable to resolve the issue, contact Uni-T customer support for assistance.

Issue: The multimeter is not measuring correctly. Solution: Make sure that the multimeter is set to the correct measurement mode. You can find the measurement modes in the user manual. If the multimeter is still not measuring correctly, try cleaning the probes. If the multimeter is still not measuring correctly, contact Uni-T customer support for assistance.

I hope this helps!