10 best voltmeters from Aliexpress

Everyone who has somehow dealt with the repair of electronics and electrical circuits in general knows about the purpose and use of voltmeters for practical purposes. They are used to measure the magnitude of the voltage or EMF of the circuit, and may also contain additional measuring circuits (work in multimeter mode).

According to the principle of operation, voltmeters are divided into:

• electromechanical - historically the first type of voltage meters, morally obsolete, giving large errors and gradually going out of production (concerns some varieties);
• electronic - analog and digital voltmeters with high measurement accuracy and widely used in electrical industries.

Since the measuring device is not a fundamentally complex design, a huge number of companies around the world are developing it.With the development of the Chinese trading platform Aliexpress, domestic consumers have a good opportunity to purchase goods (including voltmeters), the cost of which is much cheaper than the market price. In this regard, we have compiled a rating of the ten best electronic voltmeters for measuring voltage, presented in the assortment of the Aliexpress store.

The best digital voltmeters

Standard digital voltmeters are used to determine the voltage in an electrical circuit and diagnose electrical components. The advantage of such devices over conventional electromechanical meters is the high measurement accuracy and ease of presentation of information. The only drawback of electronic digital voltmeters is the obviously lower degree of reliability - the circuit elements are very sensitive to high applied loads, and they also do not tolerate strong mechanical shocks.

4 Inpelanyu C1187

Our rating opens with a miniature and compact voltmeter from Inpelanyu. The device is a small board with a display (supplied in three colors), which, respectively, displays the value of the measured voltage. Such a design can be used for a variety of purposes (for example, as an indicator for a charger or for a car’s on-board network), it is easy to connect and measure very reliably (the product is quite popular on Aliexpress and therefore its error has been repeatedly tested by buyers). In addition, the board has a trimming resistor, which will help achieve accuracy in a particular range.There is also a kind of protection against incorrect installation - if you reverse the polarity of the wires, the display simply will not turn on.

3 Diymore 100V 10A

By its type, this device is similar to the voltmeter described above, but Diymore is no longer so primitive and can show not only voltage, but also current strength. Otherwise, there are practically no differences, the principle of operation and scope of the counter are identical. There are no particular complaints about the accuracy of measurements, however, many users note the difficulty of connecting a voltmeter (there is no diagram or instructions in the kit, and not everyone will be able to figure out the pinout of 5 wires on their own).

2 Inpelanyu Q0621

This sensor is positioned by the manufacturer as specifically designed for use in cars (motorcycles). Such adaptability of the device is expressed in the fact that you don’t have to solder and mount anything to connect the voltmeter - just insert the device into the cigarette lighter, after which it will inform you in real time about the current voltage of the on-board network and the temperature inside the car. This is both the main advantage and the main disadvantage of the gadget. The plus is that, as already mentioned, absolutely any user can connect the Q0621, regardless of their soldering skills, etc. - the voltmeter only needs to be placed in the allotted connector.

The downside is this: the gadget will occupy a very useful cigarette lighter slot, and its case does not even have a USB input for charging.Naturally, if the car owner is at least a little versed in technology, then he will better spend time and connect a simpler, but autonomous voltmeter.

1 KETOTEK AC20A

The device embodies the maximum that a compact measuring sensor can contain. Small in size, the device combines many functions and is able to simultaneously display voltage, current, energy and a number of other not so important indicators. There are possibilities for additional manual adjustment for specific conditions (for example, setting the power limit). And if there were no particular complaints about the accuracy of measurements in the reviews, then the display seemed dull to many (the most contrasting image is obtained when viewed at an angle of 45 degrees from below to the screen plane), and from certain angles it is generally almost invisible.

The best portable voltmeters

In this category, we will focus on devices that can function without a direct connection to the electrical circuit. This kind of voltmeter is used mainly by electricians to quickly determine the presence of voltage in a particular area.

3 MESTEK MT898

A good choice for electricians and other professionals who often work with voltage. The gadget implements contactless technology that allows you to find out data on the presence of voltage without touching the wires themselves and thus without violating their insulation.The model has the form of a ballpoint pen with a special clip (for better fixation in the pocket), assembled from high-quality plastic and equipped with two sensitivity modes (the first one determines the phase / 0, and the second one is designed to search for hidden wiring). You can also set up an indication (sound or light), and in case of insufficient lighting, use a flashlight.

The device works only on AAA batteries (it will not work to connect the batteries) and, as you probably already understood, it cannot directly measure the voltage (it only shows its presence).

2 UNI-T UT18D

Worthy of mention is the portable voltmeter UNI-T UT18D, original both in its design and performance. In the prefabricated housing, consisting of two segments, there are probes for measuring voltage at the terminals of electrical circuits. Each of the segments is made in the form of a comfortable handle and painted in black and red, respectively.

Judging by the description from the seller, UNI-T UT18D is designed to measure voltage in the range from 12 to 690 V. Such a spread of values ​​\u200b\u200bgives the device some versatility, however, the accuracy with a three-digit display of the result will be clearly not enough. The operating requirements are not impressive either: the correct operation of the voltmeter is guaranteed only at temperatures from -12 to +40 degrees Celsius. Despite all the limitations and conventions, consumers give the model exceptionally high marks. Perhaps technical characteristics with ergonomics are decisive indicators, but they are not able to justify the asking price alone.

1 OOTDTY 1A10388-BK

A classic multimeter, great for both home and professional use. Many different functions are concentrated in one device (voltmeter, ammeter, resistance tester), and all of them operate at different frequencies and ranges. Overload protection and test leads are provided for a safe connection, and the gadget itself, although made in China, in its design and design strongly resembles the brainchild of Soviet electronics (which for many is almost the standard of reliability and quality).

Despite the fact that the principle of operation of OOTDTY is not very complicated and obviously will not cause difficulties for experienced users, for beginners the device runs the risk of seeming too tricky and unsafe (this is also facilitated by the lack of Russian-language instructions). However, the network is full of detailed guides and tips, so almost anyone can figure it out.

The best voltmeters for USB ports

USB voltmeters are miniature conductor devices based on the same principles as standard electronic models. They are used to diagnose the status of USB connection interfaces, displaying information about measurements on a miniature display. It makes no sense to talk about the advantages and disadvantages of such devices, since USB voltmeters have no analogues that perform a similar function.

3 JUANJUAN USB Tester

The irony of JUANJUAN's budget voltmeter lies in the duality of impressions from the statements of users and what technical characteristics the developers endowed it with. First, the narrow range of voltage measurement is noteworthy - from 5 to 20 V, respectively. Secondly, the measurement error (in the best case) is about one percent of the result - in some systems, such an accuracy indicator is unacceptable, and can lead to erroneous rejection or the notorious omission of an obvious defect. These factors are quite enough to stop considering the voltmeter as one of the best, but buyers have their own opinion on this matter.

Actually, it is not so much the quality of the JUANJUAN USB Tester that is evaluated, but the very fact of its operation. The seller also played a big role in popularization: the speed of delivery also leaves a good impression. But the main advantage of the voltmeter is the level of cost: it is almost impossible to find a working analogue for a similar amount.

2 ATORCH 12 in 1

This USB tester is distinguished primarily by its high measurement accuracy, repeatedly tested by customers from all over the world. The device screen displays standard information about voltage, current, resistance, battery capacity, current temperature and charging time, and the display itself has several backlight modes.Despite the fact that the device is positioned as a super multifunctional (12 in 1 marking will remind many of the times of Tetris and Dendi cartridges, where the number of games was considered similar in an obscure way), no unusual and interesting features were noticed. But ATORCH has internal memory (that is, even when disconnected from the network, the device remembers information about the last connected device, which is very convenient, for example, when testing power banks).

1 ATORCH Type-c & USB Color tester

Not wanting to stop there, Atorch went further and developed a device already labeled as “15 in 1” (however, we could not find any explanation of what exactly is included in this number). However, the device hardly needed such attention, given the declared functionality, an unusual form factor and an adequate price tag.

The main feature of the USB tester is the ability to work not only with USB ports, but also with Type-C connectors. Otherwise, everything is pretty standard: a color display displays information about current, voltage, power, temperature, capacity and charging time. The above is necessary primarily to assess the current capacity of built-in batteries on various devices and external batteries, and such testers are actively used to check the health of adapters and cables used to recharge smartphones and other devices.Regarding the first point, it is worth noting: there are several opinions regarding the degree of accuracy of such measurements (many say that it is basically impossible for Chinese testers to accurately assess the condition of the battery, and the error will be at least 20-30%), but most buyers are quite satisfied with the received results.

Popular vote - who is the best manufacturer of voltmeters on Aliexpress?
Vote!

UNI-T

ELECALL

JUANJUAN

HIDANCE

RD

BeHelper

Morning Group

Inpelanyu

Diymore

KETOTEK

MESTEK

OOTDTY

ATORCH

Total voted: 16

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