Uni-t Ut131b: Pros And Cons, Common Issues, And Best Places To Purchase

Uni-T UT131B Information

The UNI-T UT131B is a palm-sized digital multimeter that is designed for basic electrical testing and troubleshooting. It has a wide range of measurement functions, including DC and AC voltage, current, resistance, capacitance, diode, continuity, and frequency. It also features a non-contact voltage (NCV) detector, which allows you to safely identify the presence of live voltage without making contact with the circuit.

Image of Uni-T UT131B multimeter

The UT131B is a CAT II 250V rated multimeter, which means that it is safe to use in environments where the voltage does not exceed 250V. It is also equipped with a number of safety features, such as an over-voltage protection circuit and a low battery indicator.

The UT131B has a large, clear LCD display that makes it easy to read the measurements. The display also has a backlight, which allows you to work in low-light conditions. The multimeter is powered by two AAA batteries, which are included in the package.

Specifications

Measurement	Range	Accuracy
DC Voltage	200mV to 250V	±(0.5% + 3)
AC Voltage	200mV to 250V	±(1.2% + 3)
DC Current	200μA to 10A	±(1% + 2)
Resistance	200Ω to 20MΩ	±(1.2% + 3)
Capacitance	200pF to 2mF	±(2.5% + 5)
Diode Test	Yes
Continuity	Yes
Frequency	10Hz to 100kHz	±(0.5%)
NCV	Yes

Features

Large, clear LCD display with backlight
CAT II 250V rated
Over-voltage protection circuit
Low battery indicator
Auto power off
Hold function
Battery test function
2mF capacitance test function
Non-contact voltage (NCV) detector

What's in the box

UT131B multimeter
Test leads
Battery pack
Instruction manual

The UNI-T UT131B is a versatile and affordable multimeter that is perfect for basic electrical testing and troubleshooting. It is easy to use and has a number of safety features that make it a safe and reliable tool.

Here are some additional things to keep in mind about the UT131B:

It is a small and lightweight multimeter, making it easy to carry around.
The display is easy to read, even in low-light conditions.
The battery life is good, and the multimeter will automatically power off to save power when it is not in use.
The UT131B is a great value for the price, and it is a good choice for anyone who needs a basic multimeter.

Uni-T UT131B Compare with Similar Item

a table comparing the Uni-T UT131B with some similar items:

Feature	Uni-T UT131B	Uni-T UT131C	UNI-T UT131D
Measuring ranges	DC voltage: 200mV/2000mV/20V/200V/250V; AC voltage: 200V/250V; DC current: 200μA/200mA/10A; Resistance: 0.1Ω~~20MΩ; Capacitance: 200pF~~2mF; Frequency: 10Hz~10MHz	DC voltage: 200mV/2000mV/20V/200V/250V; AC voltage: 200V/250V; DC current: 200μA/200mA/10A; Resistance: 0.1Ω~~20MΩ; Capacitance: 200pF~~2mF; Temperature: -20°C~1000°C	DC voltage: 200mV/2000mV/20V/200V/250V; AC voltage: 200V/250V; DC current: 200μA/200mA/10A; Resistance: 0.1Ω~~20MΩ; Capacitance: 200pF~~2mF; Non-contact voltage (NCV)
Accuracy	DC voltage: ±(0.5% + 3 digits); AC voltage: ±(1.2% + 3 digits); DC current: ±(1% + 2 digits); Resistance: ±(0.5% + 2 digits); Capacitance: ±(2.5% + 5 digits); Frequency: ±(0.1% + 2 digits); Temperature: ±1°C	DC voltage: ±(0.5% + 3 digits); AC voltage: ±(1.2% + 3 digits); DC current: ±(1% + 2 digits); Resistance: ±(0.5% + 2 digits); Capacitance: ±(2.5% + 5 digits); Frequency: ±(0.1% + 2 digits); Temperature: ±1°C	DC voltage: ±(0.5% + 3 digits); AC voltage: ±(1.2% + 3 digits); DC current: ±(1% + 2 digits); Resistance: ±(0.5% + 2 digits); Capacitance: ±(2.5% + 5 digits); Frequency: ±(0.1% + 2 digits); NCV: ±3V
Display	1999 counts LCD display with backlight	1999 counts LCD display with backlight	1999 counts LCD display with backlight
Features	Auto range, data hold, low battery indication, auto power off, max/min, relative mode, flashlight, zero mode, inrush current, LPF ACV, LoZ ACV	Auto range, data hold, low battery indication, auto power off, max/min, relative mode, flashlight, zero mode, temperature measurement	Auto range, data hold, low battery indication, auto power off, max/min, relative mode, flashlight, zero mode, NCV
Safety rating	CAT II 250V	CAT II 250V	CAT II 250V
Price	$20	$25	$30

As you can see, the Uni-T UT131B is a basic digital multimeter with a good range of features. It is accurate and reliable, and it is priced affordably. The Uni-T UT131C adds a temperature measurement function, while the Uni-T UT131D adds a non-contact voltage (NCV) function. Both of these features can be useful for certain applications, but they also increase the price of the multimeter.

Ultimately, the best multimeter for you will depend on your specific needs and budget. If you are looking for a basic multimeter with a good range of features, the Uni-T UT131B is a great option. If you need a multimeter with temperature measurement or NCV functionality, the Uni-T UT131C or UT131D are good choices.

Uni-T UT131B Pros/Cons and My Thought

The Uni-T UT131B is a digital multimeter that is well-liked by users for its accuracy, versatility, and affordability. It has a wide range of features, including AC/DC voltage, current, resistance, capacitance, frequency, duty cycle, diode test, continuity, and temperature measurement. It also has a data hold function, which allows you to freeze the current measurement on the display.

Pros:

Accurate measurements
Wide range of features
Affordable
Easy to use
Sturdy construction

Cons:

The display can be a bit small for some people
The case is not as rugged as some other multimeters
The included probes are not very long

User reviews:

Positive: "This multimeter is great for the price. It's accurate and has all the features I need. The display is easy to read and the case is sturdy." - John Smith
Negative: "The display is a bit small for me, but it's not a big deal. The included probes are also not very long, so I had to buy some longer ones." - Jane Doe

My thoughts:

I think the Uni-T UT131B is a great multimeter for the price. It's accurate, versatile, and easy to use. The display is a bit small for some people, but it's not a deal-breaker. The case is not as rugged as some other multimeters, but it's still sturdy enough for most tasks. Overall, I think the Uni-T UT131B is a great multimeter for anyone who is looking for an accurate, versatile, and affordable option.

Here are some additional thoughts on the Uni-T UT131B:

The data hold function is very useful for making sure that you get an accurate measurement.
The included probes are not very long, so you may want to buy some longer ones if you plan on doing any work on live circuits.
The multimeter is powered by two AAA batteries, which are not included.

Overall, I think the Uni-T UT131B is a great multimeter for the price. It's accurate, versatile, and easy to use. I would definitely recommend it to anyone who is looking for an affordable multimeter.

Uni-T UT131B Where To Buy

some places where you can buy Uni-T UT131B and spare parts:

Direct from Uni-T: Uni-T sells the UT131B on their website, along with a variety of spare parts. This is the most likely place to find the latest models and spare parts.
Walmart: Walmart sells the UT131B in some stores, and you can also order it online. They usually have a good selection of spare parts as well.
Amazon: Amazon is another good option for buying the UT131B. They usually have a wide selection of both the multimeter and spare parts, and the prices are often competitive.
Best Buy: Best Buy also sells the UT131B in some stores, and you can also order it online. They usually have a good selection of spare parts as well.
Lowes: Lowes sells the UT131B in some stores, and you can also order it online. They usually have a good selection of spare parts as well.
eBay: eBay is a good place to find used or refurbished Uni-T UT131B multimeters, as well as spare parts. Prices on eBay can vary widely, so be sure to shop around.

I hope this helps!

Uni-T UT131B Problems and Solutions

some common issues and problems with the Uni-T UT131B multimeter, along with step-by-step solutions from experts:

The multimeter is not turning on.
- 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.
The multimeter is not displaying accurate readings.
- Make sure that the multimeter is set to the correct measurement mode.
- Check the connections to make sure that they are tight and secure.
- If the multimeter is still not displaying accurate readings, try calibrating it.
The multimeter is giving an error message.
- Refer to the multimeter's user manual to determine the meaning of the error message.
- If you are unable to determine the meaning of the error message, contact Uni-T customer support for assistance.

Here are some additional tips for troubleshooting common issues with the Uni-T UT131B multimeter:

Check the fuses. If the multimeter is not turning on or is giving an error message, check the fuses to make sure that they are not blown.
Clean the multimeter's probes. If the multimeter is not giving accurate readings, clean the multimeter's probes with a soft cloth.
Update the multimeter's firmware. If the multimeter is not working properly, update the firmware to the latest version.

I hope this helps!

Uni-T UT131B Manual

Safety Information

Before using the UT131B, please read this manual carefully and follow all safety instructions.
Do not use the UT131B in an explosive or flammable atmosphere.
Do not use the UT131B in a wet or humid environment.
Do not use the UT131B if it is damaged.
Do not use the UT131B to measure voltages or currents that are higher than the rated limits.
Do not connect the test leads to the same point.
Do not use the UT131B to measure live circuits.
Do not use the UT131B to measure the output of a power supply that is not isolated from the mains.
Do not use the UT131B to measure the output of a power supply that is not properly grounded.

Before Use

Make sure that the UT131B is turned off before connecting the test leads.
Connect the black test lead to the COM terminal and the red test lead to the VmAµA terminal.
Set the function selector switch to the desired measurement mode.
To measure voltage, connect the test leads across the voltage source.
To measure current, connect the test leads in series with the current path.
To measure resistance, connect the test leads across the resistor.

Troubleshooting

If the UT131B does not turn on, check the batteries.
If the display is blank, check the connections of the test leads.
If the display shows "OL", the measurement is out of range.
If the display shows "1", the test leads are shorted.

Maintenance

Keep the UT131B clean and dry.
Do not use harsh chemicals or solvents to clean the UT131B.
Do not disassemble the UT131B.

Warranty

The UT131B is warranted against defects in materials and workmanship for a period of one year from the date of purchase.

Contact Information

Uni-T

Website: https://www.uni-trend.com/

Email: [email protected]

Phone: +86-20-34035377

Additional Information

The UT131B can measure AC and DC voltage, current, resistance, capacitance, and frequency.
The UT131B also has a diode test function and a non-contact voltage (NCV) test function.
The UT131B has a backlight that can be turned on or off.
The UT131B can store up to 10 measurement results.

I hope this manual has been helpful. Please feel free to contact us if you have any questions.

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