Rating of the best ammeters in 2020

In this article, we will provide recommendations on how to choose the right current meter, tell you about popular models, the best manufacturers in the Russian market, well-known brands, decide where and which company it is better to buy a device at the best price.

Today, in electrical stores you can find many types of equipment, with various functions, the purpose of our review is to understand what design features they are, to determine the characteristics you need, so as not to make a mistake when choosing.

An ammeter is a tool for studying the strength of an electric current. In principle, its operation is not difficult, usually, it consists of a galvanometer with a parallel connected low resistance shunt resistor.

During construction or repair, multimeters are used in which you can switch between amperes, volts, ohms.

Description of ammeters

For more than a hundred years, the field of application of the galvanometer has been the study of electrical networks, its functionality is limited by a small range of measurements. In order to investigate high performance without destroying the winding, the mechanical elements of the apparatus are added with a "shunt" that provides a reduced resistance. It is located in parallel with the circuit of the device, a significant part of the electrons passes through it. This combination of elements gave rise to a new instrument known as the ammeter.

The number of electrons passing through the shunt connection is proportional to their total number in the system, this allows you to fix extreme indicators without destroying the equipment. The ammeter gets its name from the unit of the same name.

To detect electricity in the network below 1 A, milli, micro, nano or picoammeters are used, depending on the magnitude.

The device is based on the principle of electromagnetism, which states that any charged particle that passes through a wire creates a magnetic field around it.

The device is always installed in series with the element to be examined. It is important to note that the influence of the internal voltage, the resistance of the device should be minimal.

Types of ammeters

Depending on the design, scope of the product, there are several types of it. Let's look at what you should pay attention to, what selection criteria to rely on when buying one or another option.

Analog Devices

This obsolete, dial gauge is still widely used for research, for example, a panel ammeter used to study three-, single-phase AC networks. Such devices are divided into two groups, differing in the mechanism that drives the indicator pointer:

• electromechanical products;
• thermal devices.

Although thermal instruments have largely fallen out of use, they represent a large subgroup that includes various types of ammeters. Let's take a look at this in more detail:

1. Electromechanical devices

The operation of these devices is based on a mechanical interaction between current and a magnetic field or electrified conductors. They consist of a fixed and movable element attached to an arrow that indicates the value on the scale.

Like all devices of this type, they are cumbersome, prone not only to component wear, but also to large research errors. However, readings are fast, so the products are useful as stationary measuring elements. These tools include the following:

• Magnetoelectric with frame, voice coils. They consist of a magnet, a moving frame or coil that rotates under the action of an "Ampere" force. A spiral on the frame axis prevents the frame from rotating. The more intense the electrons flowing through the frame, the larger the angle of rotation. As a result, the arrow attached to this structure moves along the scale. The popularity of these models is due to their high accuracy and sensitivity, but they work only in DC circuits.
• Electromagnetic devices consist of an indicator needle attached to a magnet inside a coil. When electrons flow through it, a field is created that causes the magnet to attract or repel.
• Ferromagnetic devices consist of a stationary coil that contains a curved sheet of soft iron. The movable part is another, the same plate, it is attached to the steel shaft of the indicator arrow. When the circuit is closed, both plates turn into magnets, begin to repel each other with a force proportional to the intensity of the current. The amplitude of the needle movement depends on the number of electrons flowing through the coil. These devices have an important advantage, they serve DC, AC networks.
• Electrodynamic devices consist of two coils that create magnetic fields, one of them stationary, the other movable. The reaction between them provides a deflection that is compensated by the coil springs. Such a unit is the best option for researching AC, DC networks.

In the corner of the display of each device there is a marking that allows you to distinguish an ammeter with a moving element from an electrodynamic one or to determine in which networks it can be used.

2. Thermal ammeters

The operation of these products is based on the principle of expansion of conductors when heated. It is proportional to temperature, and according to Joule's law, the amount of heat released is proportional to the square of the current. The devices are used on any network.

The advantage of thermal devices is that they are not affected by external magnetic fields, they can be mounted on a din rail. However, the high energy consumption required to heat the conductor, the high cost of these devices makes them unprofitable for widespread use.

3. Digital ammeters

The technological advances of our time have brought electronic devices to the market with a high degree of versatility and performance. With digital instruments, reading errors are eliminated, since the data is displayed on the screen, and moving mechanical parts are replaced by circuits, the wear of such products is minimized, they are easy to use, portable, and made from modern materials.

The two most famous instruments in this category are the multimeter, the amperometric clamp. Both models are available in analog and digital versions, relatively inexpensive, the latter being the most popular:

• The amperometric clamp is a useful tool because it instantly measures the intensity of AC, DC without opening, interrupting the circuit.

The device is powered exclusively by a magnetic field created by electricity, and since it has no braid, it cannot burn out.The product is easy to use, the clips are triggered by moderate finger pressure, and close, requiring only one hand. The device can explore AC, DC. The device is actively used in the automotive industry.

Where can I buy

Ammeters of Chinese, Russian production, are sold in specialized electrical stores, managers will give you advice on which of the new products to buy, orientate at an average price, suggest a budget model.

You can order your favorite model online, in the online store, on AliExpress and other sites.

Rating of quality ammeters for 2020

Our list is compiled from real reviews, taking into account the opinions of buyers who purchased ammeters for personal use. It provides a description of analog, digital devices.

Analog devices

Such devices have mechanical parts in their design: magnets, coils with indicator needles.

EA2265

The 5th place is taken by a laboratory apparatus used to determine the standard deviation of the AC power, sinus shape, and power frequency. The device is used to calibrate less accurate instruments, verification during testing.

The design of EA2265 includes:

• magnetoelectric DC rectifier with a movable element on stretchers;
• arrow with antiparallax device;
• measured scale, the length of which is 15 cm.

Unit features:

• no energy source needed;
• the value of the internal resistance of the device does not affect the order of its operation;
• external transformers can be connected, expanding the measurement range;
• the design of the indicator needle (pointer) provides accurate readings.

The devices are manufactured in 2 accuracy classes: 0.2 or 0.5. Units of other ranges are supplied by agreement with the buyer.

Certification data:

• GOST 8711, GOST R 51522-99 (IEC 61326-97), GOST R 51350-99 (IEC 61010-90), GOST R 51317.4.2-99, GOST 51317.4.3-99;
• TU 4224-014-05798310-2001;
• number of the license agreement of the State Standard of the Russian Federation No. 002643-IR dated 26.12. 2003 year
• Declaration of Conformity No. ROSS RU.ME72.D00027 dated 30.09.2004

Technical indicators:

Parameters	Specifications
Accuracy class	0.2 or 0.5
Measurement limits (two measuring ranges in one device)	0.5 and 1 A; 10 and 20 A; 5 and 10 A; 2.5 and 5 A
Temperature	from 10 to 35 ° С
Relative humidity	80% at 20 °
dimensions	243 x 200 x 100 mm
Weight	no more than 3 kg

• delivery within 7 days;
• the ability to pay online (Visa, Mastercard, Maestro, Mir, Apple Pay and Google Pay) or upon receipt;
• up to a year warranty;
• works with current in the range from 0 to 100% of the scale;
• not large internal resistance of the product.

• susceptible to vibration, shock, requires installation in a horizontal plane;
• reading is difficult in bright light.

А72 100А / 5А-1.5 | SQ1102-0054 TDM ELECTRIC

On the 4th place in our list is low-voltage equipment installed in a panel. The design of the device provides for a transformer, a moving coil, which provides a measurement range from 0-100 A. The built-in model from TDM ELECTRIC is calibrated, used in AC (variable) networks, has an accuracy class of at least 1.5

Technical indicators:

Parameters	Specifications
Model	Embedded
Width	7.2 cm
Height	72 mm
Voltage type	AC (change)
Modular design	-
Calibrated	+
Accuracy class	0.5
Indicator set	-
Scale backlight	-
Through current transformer	+
Measuring system	Moving coil
Nominal. final scale value	100 A
Overcurrent scale	+
Max. instrument pointer deflection	90 °
Measuring range	0 ... 100 A

• simple, reliable design;
• acceptable price;

• not detected.

М42100 75-0-75А

3rd place - for М42100 - a high-precision product used by DC networks. Devices М42100, М42101 are manufactured with accuracy classes 1.5 or 2.5.

Features of operation:

• resistance to natural conditions in accordance with GOST 22261-76;
• application temperature from -50 ºС to 60 ° С, at
• at a humidity of 95%, + 35 ° С;
• the device is resistant to mechanical stress.

The M42100 is based on the interaction of a magnetic field with one or more cores. The stationary and active parts of the structure are magnetized with one sign (plus or minus), then they are repelled, the arrow fixed on the movable element moves.

Technical indicators:

Parameters	Specifications
Accuracy class	1,5; 2,5
Basic error	±1,5; ±2,5 %
Variation	2,25%-3,75%
The arrow does not return to zero	1.0-1.7 mm
Permissible change in readings for every 10 K	±0,8 %-±1,2 %
Resting the moving part	no more than 3 s
dimensions	80x80x50 mm
Weight	0.2KG

• price quality.

• not detected.

A72P 30A-1.5

At 2-place ammeter, designed for the study of single-phase, low-voltage AC networks in residential, public or industrial buildings.

The device is registered with the state verification authorities (CN.C.34.004.A # 36109), there are corresponding marks in the passport, on the case.

A protective transparent cover made of non-combustible plastic, insulating the external clamps, provides fire and electrical safety, and the metal shield prevents negative effects of magnetic fields. The equipment is switched on directly.

Technical indicators:

Parameters	Specifications
Ammeter	For installation in a panel
Measuring system	Moving coil
Measuring range	0 ... 30 A
Through current transformer	-
Accuracy class	0.5
Voltage type	AC (change)
Calibrated	+
Model / execution	Embedded
Width	72 mm
Height	72 mm
Nominal. final scale value	30 A
Overcurrent scale	+
Modular design	-
Max. instrument pointer deflection	90 °
Indicator set	-
Scale backlight	-

• arrow correction;
• you can seal the case.

• not detected.

А72 X / 5А-1.5

1st place is confidently occupied by A72 X / 5A-1.5, a device without a scale, used in single-phase, low-voltage AC networks, adapted for residential complexes or commercial real estate.

The body is made of non-combustible materials that guarantee fire safety. А72 X / 5А-1.5 is fastened into the "shield cover" through a transformer and is completed with fasteners.

Technical indicators:

Parameters	Specifications
Type of cutout in the flap cover	Square cut (68x68 mm)
Connection method	Transformer
Maximum measured current, A	5-4000.
Front panel size, mm	72x72
Accuracy class	1.5
Measuring network frequency, Hz	50
Rated voltage, V	230
Mounting plane position	Vertical ± 5%
Degree of protection	IP54
Weight	0.13 kg
Operating temperature range, ° С	from -30 to +50
Calibration interval	2 years
Average service life	12 years old
Mean time between failures, not less	50,000 hours
Guarantee period	5 years

• the indicator needle is adjusted;
• not a high price;
• reliable case.

• not detected.

Digital devices

Electronic devices have no mechanical parts in their design, only circuits, which makes them more wear-resistant, more accurate than analog ones.

PEAKMETER PM8232

5th place in a small, compact model, convenient in everyday life, allowing you to measure many useful parameters. The comfort of the users is provided by the backlight of the screen, which helps in conditions of poor visibility, it is possible not only to study the obtained data, but also to inspect the surrounding space. The PM8232 has a wide range of indications, including the status of the device's batteries.

It is important to note that the product meets all safety requirements, is ergonomic, suitable for beginners and experienced ones.

The following data can be obtained with a universal device:

• voltage, force AC, DC;
• nominal resistance of resistors;
• ring the LEDs;
• check the network for integrity;
• you can apply a non-contact method of taking readings by bringing the device to the desired wiring, the red LED lights up;
• identify the phase cable.

The probes in the multimeter model are non-removable. The PM8232 receives data automatically, allowing even beginners to understand the information.There is no overwhelming number of features that can confuse the owner of the device.

Two batteries are used as an energy source. The place under them is closed with a lid, fixed with a screw, so the owner should not worry about losing batteries while working with the gadget. It is important to take into account that disassembling the case is required to replace the fuses.

PM8232 stands out for its high accuracy of research, more suitable for home use, not suitable for high-voltage electrical circuits, it is important to read the limitations in the instructions.

Technical indicators:

Parameters	Specifications
A type	Multimeter
Types of measurements of electrical circuit parameters	AC current (A ~), DC current (A-), DC voltage (U-), AC voltage (U ~), resistance ®
Gain of transistors h21	-
Continuity check	+
Diode test	+
Temperature measurement	-
Other tests and measurements	Non-contact voltage detection
Measurements per second	3
Basic error	0.8 %
Selection of measuring ranges	Manual
Display backlight	+
Nutrition	Batteries AAAx2
Equipment	Warranty card, documentation
Weight	350 BC

• stability of the apparatus;
• high screen resolution;
• economical energy consumption;
• price quality;
• contactless measurement method;
• ergonomic, reliable design.

• non-removable probes.

Polygon А-05

At the 4th place is a digital ammeter used to measure AC indicators with a frequency of 50 Hertz. The equipment has a relay, switching of which allows it to be used with different transformers.

The product body is designed for DIN-rail mounting. On the front there is a digital indicator "primary current transfer setting". The power supply circuit is structurally (galvanically) separated from the measuring circuit.

At the bottom of the case there are terminals for connecting the equipment to the network, the secondary winding of the transformer. The product is replenished directly from a controlled system. The warranty period of the unit is 2 years, the protection level is 0, EMC in accordance with GOST R50033.92. It is important to study the operating instructions before starting.

Technical indicators:

Parameters	Specifications
Accuracy class	1
Rated supply voltage:	220±10%
Rated mains frequency Hz	50
Indication	Seven-segment indicator
Measured current range	0…400
Number of phases	1
Item type	Ammeter
Measurement method	Transformer current
Connection type	Screw connection
Installation method	DIN rail 35mm wide
Operating temperature range	-40 ... + 45 ° С
Weight	0.2KG
Manufacturer's warranty	2 year
Product manufacturer	Russia

• simple, reliable design;
• digital indicators;
• affordable price.

• not detected.

VAR-M01-083 AS20-450V UHL4

The 3rd place is taken by a device designed to check the current voltage parameters in AC networks. The equipment, as the main or additional indicator, can be built into the automatic control system, control of production processes.

The energy for the operation of the device is consumed from the controlled network. If the voltage has a value from 20 to 450 V, then the current values ​​are displayed on the digital indicator. The parameters are taken by a non-contact method using a built-in transformer unit.

The investigated current values, the number of network outages are entered into the device's memory. The interface is logical, all information is displayed after pressing the corresponding buttons on the front of the product. The memory is cleared by holding down the shift key for 5 seconds.

It is important to know that the equipment controls the current data, therefore it is not subject to periodic verification.

Design features of VAR-M01-083 AS20-450V UHL4:

• does not need operational power supply;
• voltage measurement (АС) 20… 450V;
• accuracy 1.0.

The device has a plastic cover, the wires are connected from the front. Installation is carried out using a DIN rail 35 mm wide (GOST R IEC 60715-2003) or on a smooth surface.

The device provides the specified modes of operation under the following conditions:

• the environment should not contain a large amount of dust, explosive gases;
• vibration, device attachment points, with a frequency of up to 100 Hertz, acceleration of 9.8 m / s2 is not allowed;
• at a distance of less than 10 mm from the body of the unit, there should be no electromagnetic fields created by a pulse current of more than 100A;
• the device complies with GOST R 51317.4.1-2000, GOST R 51317.4.4-99, GOST R 51317.4.5-99;
• moisture on the product body is prohibited;
• height above sea level no more than 2 km.

VAR-M01-083 AC20-450V UHL4 is a reliable, high-tech device for industrial and commercial areas.

Technical indicators:

Parameters	Specifications
Supply voltage	Variable single phase
AC supply voltage range (variable):	AC 20 ... 450V
Supply voltage frequency (AC)	50 Hz
Measuring voltage range	AC20-450V
Voltage measurement error	1% ± 1 least significant digit
Measured current range:	0.5 - 63A
Current measurement error:	2% ± 1 least significant digit
Current measurement method:	Contactless
Using current transformers:	-
Cross-section of connected conductors:	Not more than 2.5 sq. Mm.
Relay protection degree by frame / by terminal	GOST 14254-96; IP20
Operating temperature range:	-25 ... + 55 ° С
Relative humidity:	up to 85% (at 25 ° С)
Weight	0.1 kg.
Overall dimensions (WxHxD):	35x90x63 mm
Brand name	Meander
Country of origin:	Russia
Manufacturer's Warranty:	2 years
Life time:	7 years

• enters data into the device memory;
• non-contact measurement;
• corresponds to GOST.

• the device is sensitive to external influences.

ZC15400

2nd place for a digital multimeter that controls voltage (0 - 100V). ZC15400 has a built-in 10A DC shunt, which makes it possible not to connect an external one, making it easier to study the network, install the product.

The equipment is used in laboratory power systems, homemade chargers. The electronic display has two lines, different colors, for displaying data. This feature of the device significantly increases the convenience in reading information.

For installation, you need to make rectangular openings in the surface where you plan to install the equipment, insert it, no additional fastening is required, the latches built into the case will hold the device in place.

The ZC15400 is powered from the network, which it diagnoses or from it. The kit includes wires for mounting the device and measuring parameters.

Technical indicators:

Parameters	Specifications
Working voltage	0.1-100 V DC
Note	The maximum input voltage cannot exceed 100V
Working current	≤20mA
Display	0.28 "Two colors blue and red
measurement range	DC 0-100V 0-10A
Minimum resolution (V)	0.1V
Update frequency	≥100mS / times
Measurement accuracy	0.01
Minimum resolution (A)	0.01A
Working temperature	from -15 to 70 ° c
Operating pressure	from 80 to 106 kPa
The size	47 × 28 × 16 mm.
Net weight	19 g

• reliable construction;
• simple installation.

• delay in updating data.

DIGITOP AM-2

The DIGITOP AM-2 device, with an operating frequency of 50 hertz, designed for AC research, takes the 1st place in the rating. It is a professional grade product with high grade precision, reliable, durable construction, in demand in the market, competing with products from China.

Design features:

• error - no more than 0.5 Amperes;
• measures frequency;
• high definition LED screen;
• indication of dimension 0.1 A;
• serial connection of the device to the network;
• the only entrance for measurements.

Technical indicators:

Parameters	Specifications
Supply voltage	110-240V AC
Guarantee	12 months
Manufacturer	Digitop
Measured current	1 - 50 A
Operating temperature range (C °)	-10...+50
Installation method	Din rail
Type of shell	3S
Dimensions (mm)	52.5x90x63
Degree of protection	IP20

• 2 years warranty;
• simple and quick installation on a standard DIN rail;

• not detected.

The choice of an ammeter, due to the increased danger of electric current for human life, must be taken especially seriously.No matter how much the product costs, you need to choose it in accordance with the established operating procedures.

We hope the review will provide all the information so that your home is always light and warm.