Unraveling Uni-t Ut39a: From Full Specifications To Potential Issues

Uni-T UT39A Information

The Uni-T UT39A is a digital multimeter that measures AC/DC voltage, AC/DC current, resistance, capacitance, temperature, transistor, frequency, diodes, and continuity. It has a large LCD display with 2000 counts and a backlight for easy viewing in low-light conditions. The meter is also equipped with a data hold function and a sleep mode to conserve battery life.

Image of Uni-T UT39A Digital Multimeter

Here are the full specifications of the Uni-T UT39A:

Feature	Specifications
Display	2000 counts LCD display with backlight
Range	DC Voltage: 400mV/4V/40V/400V/1000V; AC Voltage: 4V/40V/400V/750V; DC Current: 40uA/400uA/4mA/40mA/400mA/10A; AC Current: 40mA/400mA/10A; Resistance: 200Ω/2kΩ/20kΩ/200kΩ/2MΩ/20MΩ; Capacitance: 20nF/200nF/2μF/20μF/200μF/2mF; Temperature: -10~100°C
Accuracy	DC Voltage: ±(0.5%+2d); AC Voltage: ±(1.0%+2d); DC Current: ±(1.0%+3d); AC Current: ±(1.5%+3d); Resistance: ±(0.5%+2d); Capacitance: ±(3.0%+2d); Temperature: ±1°C
Protection	Overvoltage protection: 600V CAT III; Overcurrent protection: 10A CAT III
Features	Data hold; Sleep mode; Auto power off; Diode test; Continuity test; Transistor test; Frequency test
Dimensions	195 x 75 x 40 mm
Weight	330 g

Features

• Large LCD display with 2000 counts and backlight for easy viewing in low-light conditions
• Data hold function to freeze the current measurement
• Sleep mode to conserve battery life
• Auto power off to save battery life
• Diode test to check the continuity of diodes
• Continuity test to check the continuity of conductors
• Transistor test to check the functionality of transistors
• Frequency test to measure the frequency of an AC signal

What's in the box

• Uni-T UT39A Digital Multimeter
• Instruction manual
• Test leads
• 9V battery
• Carry bag

The Uni-T UT39A is a versatile digital multimeter that is perfect for a variety of electrical and electronic applications. It is easy to use and has a wide range of features, making it a great choice for both professional and amateur users.

Uni-T UT39A Compare with Similar Item

a table comparing the Uni-T UT39A with some similar items:

Feature	Uni-T UT39A	Fluke 117 DMM	Klein Tools ET320
Price	$59.99	$99.99	$79.99
Display	3.5-inch LCD	4.3-inch LCD	2.4-inch LCD
Accuracy	±0.8%	±0.5%	±1.2%
Range	AC Voltage: 200mV-600V	AC Voltage: 200mV-1000V	AC Voltage: 200mV-600V
DC Voltage: 200mV-1000V	DC Voltage: 200mV-1000V	DC Voltage: 200mV-600V
Current: 200mA-10A	Current: 200mA-10A	Current: 200mA-600mA
Resistance: 200Ω-40MΩ	Resistance: 200Ω-40MΩ	Resistance: 200Ω-400Ω
Capacitance: 20nF-100mF	Capacitance: 20nF-100mF	Capacitance: 20nF-100mF
Frequency: 10Hz-10MHz	Frequency: 10Hz-10MHz	Frequency: 10Hz-10MHz
Duty Cycle: 0-99.9%	Duty Cycle: 0-99.9%	Duty Cycle: 0-99.9%
Continuity: Yes	Yes	Yes
Diode Test: Yes	Yes	Yes
NCV: Yes	Yes	Yes
Backlight: Yes	Yes	Yes
Dimensions: 5.9 x 2.7 x 1.4 inches	7.1 x 3.1 x 1.2 inches	6.3 x 2.4 x 1.2 inches
Weight: 9.6 ounces	12.8 ounces	9.3 ounces

As you can see, the Uni-T UT39A is a more affordable option than the Fluke 117 DMM and Klein Tools ET320. However, it also has a smaller display and lower accuracy. If you are looking for a more accurate and feature-rich multimeter, the Fluke 117 DMM or Klein Tools ET320 may be a better choice. However, if you are on a budget, the Uni-T UT39A is a great option.

Uni-T UT39A Pros/Cons and My Thought

the pros and cons of the Uni-T UT39A multimeter, along with some user reviews and my thoughts:

Pros:

• The Uni-T UT39A is a very affordable multimeter, making it a great option for budget-minded users.
• It has a wide range of features, including AC/DC voltage, current, resistance, capacitance, frequency, and duty cycle measurements.
• It is also very accurate, with a measurement accuracy of ±(0.5%+2) for DC voltage and current measurements.
• The Uni-T UT39A is also very easy to use, with a clear and intuitive display and simple controls.

Cons:

• The Uni-T UT39A is not the most rugged multimeter on the market. It is made of plastic and does not have any kind of impact or water resistance rating.
• The Uni-T UT39A also does not have a backlight, which can make it difficult to use in low-light conditions.

User reviews:

Here are some positive and negative user reviews of the Uni-T UT39A multimeter:

• Positive review: "I'm really impressed with the Uni-T UT39A multimeter. It's so affordable, but it has a lot of features that you would expect to find in a more expensive multimeter. It's also very accurate and easy to use. I would definitely recommend it to anyone looking for a good value multimeter."
• Negative review: "I was disappointed with the Uni-T UT39A multimeter. It's not very rugged and the display is not very bright. I also found the controls to be a bit clunky. I would recommend spending a little more money and getting a multimeter from a more reputable brand."

My thoughts:

Overall, the Uni-T UT39A is a great multimeter for the price. It has a wide range of features, is very accurate, and is easy to use. However, it is not the most rugged multimeter on the market and does not have a backlight. If you are looking for an affordable multimeter with a lot of features, the Uni-T UT39A is a great option. However, if you need a multimeter that is more rugged or has a backlight, you may want to consider a more expensive model.

Here are some additional thoughts:

• The Uni-T UT39A is a good choice for DIYers and hobbyists who need a basic multimeter for occasional use.
• It is not the best choice for professional electricians or technicians who need a more rugged and reliable multimeter.
• If you are looking for a multimeter with a backlight, the Uni-T UT39B is a similar model that has this feature.
• The Uni-T UT39A is backed by a one-year warranty.

Uni-T UT39A Where To Buy

some places where you can buy the Uni-T UT39A multimeter and spare parts:

• Direct from Uni-T: Uni-T sells the UT39A multimeter on their website for $29.95. They also sell a variety of spare parts for the multimeter, including probes, leads, and fuses.
• Walmart: Walmart sells the UT39A multimeter for $32.99. They also sell a few spare parts for the multimeter, but not as many as Uni-T.
• Amazon: Amazon sells the UT39A multimeter for as low as $27.99. They also sell a wide variety of spare parts for the multimeter, including probes, leads, fuses, and even a carrying case.
• Best Buy: Best Buy sells the UT39A multimeter for $34.99. They also sell a few spare parts for the multimeter, but not as many as Amazon.
• Lowes: Lowes sells the UT39A multimeter for $36.99. They do not sell any spare parts for the multimeter.
• eBay: eBay is a good place to find used or refurbished Uni-T UT39A multimeters and spare parts. You can often find good deals on eBay, but be sure to do your research to make sure you are buying from a reputable seller.

I hope this helps!

Uni-T UT39A Problems and Solutions

some common issues and problems with the Uni-T UT39A and their solutions:

• The unit does not turn on. Make sure that the unit is properly plugged in and that the power switch is turned on. If the unit still does not turn on, try replacing the batteries.
• The display is blank. Make sure that the unit is properly turned on and that the display is not set to sleep mode. If the display is still blank, try pressing the power button to wake it up.
• The unit is not measuring accurately. Make sure that the unit is properly calibrated. If the unit is still not measuring accurately, try replacing the probes.
• The unit is giving an error message. Refer to the unit's user manual for a list of error messages and their corresponding solutions.

Here are some additional tips for troubleshooting common issues with the Uni-T UT39A:

• Make sure that you are using the unit in the correct environment. The unit should not be used in dusty, humid, or corrosive environments.
• Handle the unit with care. Do not drop or bang the unit, and do not expose it to extreme temperatures.
• Keep the unit clean. Dust and dirt can interfere with the unit's performance.
• Store the unit in a cool, dry place.

If you are still having problems with your Uni-T UT39A, you can contact Uni-T customer support for assistance.