10 best thickness gauges with AliExpress

Thickness gauges are precision instruments that are used to measure the thickness of a material or coating layer (paint, primer, putty, rust) without disturbing the integrity of the structure. They are divided into several groups. Some measure the thickness of magnetic materials, others - non-magnetic and non-metallic layers. On the purpose depends on the principle of operation of the devices.

When working with magnetic materials using electromagnetic thickness gauges. They measure the density of the magnetic field, which they themselves create. If you want to measure the thickness of a nonmagnetic material, use eddy current thickness gauges. Ultrasonic devices are used to measure the thickness of wooden, glass, plastic and other non-metallic materials.

On AliExpress all types of thickness gauges are presented. The cost of the devices starts from 1,000 rubles. The most popular among them are devices for determining the paint layer. They are popular among motorists, as I help identify unscrupulous sellers. After all, if the thickness of the paint layer is above the norm, it may indicate that the car has been leveled or repainted.

In compiling the ranking of the best thickness gauges with “AliExpress” the following indicators were taken into account:

• specifications;
• build quality;
• number of sales;
• product rating;
• customer reviews.

The accuracy of the measurements depends largely on the calibration of the instrument. The rating includes models with the possibility of manual and automatic calibration. They sell well on AliExpress and have more than 90% positive feedback.

The best inexpensive thickness gauges for paint coatings

The main difference between cheap thickness gauges from more expensive ones is accuracy of readings. Inexpensive models, as a rule, make it possible to determine the thickness of paintwork up to ten microns, expensive - up to microns. Devices of this group are not a standard and show far from perfect accuracy. But they will help when buying a car in the secondary market to identify thickening of putty and paint on the body, other details. The price of such thickness gauges is up to 1 000 rubles. At the same time, they really help not to buy a cat in a bag.

3 Richmeters RM660

The model is also known as the GX-PRO. It is compact, well in the hand. Measures paint coatings with a thickness of 0 to 1.25 mm. The device does not work very quickly. But it gives fairly accurate data, so I got into the top thickness gauge rating The measurement error is 20 microns. The accuracy of the device is enough to accurately determine the places of putty and paint thickening on the car.

On the case of the device there is a button for switching the material - “iron” and “non-iron”, as well as the unit switch. Thickness gauge needs preliminary calibration. For this, the seller with "AliExpress" sends calibration plates. You can set the thickness gauge to “zero” by pressing the “zero” button and waiting for the “cal” caption to appear on the monitor, then release the button.

2 Benetech GM200

The device can be seen at different vendors under the name GM200 or RM200. It is designed to determine the thickness of the paint coating on magnetic materials. On aluminum does not work. The model has three buttons - on, select the mode and type of measurement. Powered by 2 AAA batteries. For calibration, the seller with "AliExpress" sends a calibration washer.

The device has several modes. With a single point measurement, you need to measure the thickness, remove the apparatus and measure the thickness at another point. There is the possibility of continuous measurement. To do this, you need to lead the thickness gauge on the coating, without tearing it from the surface. Measurement error at the device 0.03 mm. In differential mode, you can measure the difference between the first and second measurement. This is the best budget model with a choice of modes of operation.

1 All Sun EM227

Simple to use compact device for measuring the thickness of non-metallic coatings on magnetic materials (iron, steel). Weight - only 23 grams. Powered by batteries. There is an instruction in Russian. The model does not need calibration and adjustment. You only need to select the units of measurement - millidyyymy or millimeters.

To measure the thickness of the paint coating, the tester is directed to the surface. The results are visible on the display after the instrument contacts the material. Data does not need to constantly reset the button. Simply change the position of the thickness gauge, and it will reset the data automatically. This is the best model for people who are not very versed in technology. The principle of operation will be mastered by even the most lazy user.

Best Universal Thickness Gauges

Most often, thickness gauges are used to determine the thickness of the paint layer (LKS) auto. But this is not their only use. Such testers are needed in many areas. They are used in shipbuilding, repair work, even in the manufacture of ceramics. This is a working tool of a defectologist, an insurance agent, a car mechanic, and sometimes a hand-made master. And in the era of total distrust, housewives are beginning to use the instruments, checking the quality of repairs.

For these purposes, more suitable are combined thickness gauges, which allow working with both magnetic metals and non-magnetic ones in eddy current and electromagnetic mode. The best of them entered the rating. These models have one drawback - limitations in the operation in the eddy current mode at high humidity. The cost of such testers is 3,000–7,000 rubles.

4 Misery-770s

Universal tester combining magnetic and eddy current diagnostic methods. Despite the low cost, it comes not just in a cardboard box, but in a good case, suitable for storage. The thickness gauge works with both ferrous and non-ferrous metals, determines the layer of paint, primer, putty with a thickness of even more than 2 mm. The accuracy of measurements for this price is the best, the error is 3%, which is very good.

There is an automatic mode for detecting metals. Conveniently, the device stores in memory 400 results, and displays 5 current data. All results are grouped, they can be easily transferred to a computer thanks to the USB connector. The working temperature range is quite wide, but it is better not to work in the cold. The menu has 4 languages, including Russian. The thickness gauge itself is compact, the weight is only 84 g, it runs on batteries. This model is the best for ease of use and ease of use, as confirmed by reviews.

3 NICETYMETER CM8806-FN

The model is positioned as a car thickness gauge, but may have wider application. Its feature is the function of determining the substrate material. Pleases measurement accuracy, which is equally good both on iron and aluminum coatings. The seller sends the device in the case.

It is interesting to turn on the device.There is no button, it starts to work if attached to the measured surface. There is an automatic shutdown function that works after 90 seconds of inactivity. Buyers complain about the quality of the instructions. This is not the easiest tester, it has many different functions, but you have to learn them by the “spear” method. The rest of the reviews are positive about the device. The device has a memory for 50 measurements, the function of flipping the display.

2 RICHMETERS GY910

The device is a device for determining the thickness of paint coatings on magnetic and non-magnetic metals. On magnetic materials, the result is instantaneous; when working on aluminum, you have to wait a few seconds. The model uses the principle of magnetic induction and eddy current effect. Measures thickness in microns, mm and microns. Range: 0–1300 microns. Accuracy: 1 micron.

The device has a multi-stage calibration and zeroing function. With “AliExpress” the device comes with calibration plates. Screen without backlight, monochrome. It displays a battery charge indicator. The minimum thickness of the base steel surface is 0.5 mm, aluminum - 0.3 mm. The feeler gage without failures works at a temperature of 0 ... 40 degrees Celsius.

1 NICETYMETER Professional CM8811

This professional thickness gauge deserves attention due to its high accuracy and best measurement speed. The sensor is made and s plastic, which minimizes the risk of scratching the paintwork during operation. There is a remote probe that allows to measure the thickness of coatings in hard to reach places. The device is also able to automatically determine the type of base material, which greatly simplifies the testing process, saves time.

The device operates in two modes - point and continuous measurement results. There is a buzzer, the threshold of which can be customized to fit your needs. Calibration of the device is simple; there are plates in the kit for carrying it out. The settings menu is accessible and understandable. For storage of the thickness gauge a convenient box is provided, which is included. In the reviews on Aliexpress write that the device fully meets the expectations of customers.

Best Ultrasonic Thickness Gauges

A characteristic feature of such models is the presence of an ultrasonic sensor. Testers can work with non-metallic coatings. This is important for determining the layer of paint on the body parts of modern cars, since many of the elements in them are made of plastic. High-precision ultrasonic thickness gauges are very expensive, you can not find them in the open spaces of "AliExpress", and in regular stores too. Their habitat - scientific laboratories. The testers presented in the rating are simplified versions of ultrasonic thickness gauges. They are suitable for domestic purposes, but can not be used as a reference.

3 SMART SENSOR AR860

This device measures the thickness of coatings on both magnetic and non-magnetic materials. The tester surpasses inexpensive analogs in accuracy and functionality. Equipment of this class can be used in expert assessment actions. The device will also help to measure the layer of paintwork when buying a car in the secondary market, useful in construction, repair, production.

The thickness gauge is reliable and easy to work. The most secluded places of the object under study are available to him. The device delivers a pulse to the surface and displays the readings on the display. Moreover, the calibration of this model is not required.The seller sends detailed instructions, so there will be no problems with the settings. In the reviews praise the quality of the screen - all the information on it is readable, as well as a small measurement error. The only drawback of the thickness gauge is not the budget price.

2 TK UM6500

The best tester, giving the opportunity to analyze the thickness of 11 types of materials. Works correctly with polyethylene, cast iron, glass, PVC, metals. There is an automatic calibration function. The case is compact, convenient to use. The tester is suitable for operation in difficult weather conditions. He is not afraid of splashing water and high humidity. The screen is large, comfortable.

Measurement accuracy is quite high. The device fully performs its functions. Comes with Aliexpress in a convenient carrying case along with instructions and cable. The kit also includes a gel to improve contact with the test surface.

1 Benetech GM100

Ultrasonic portable model with a sound speed range of 1000 ... 9999 m / s. The device has 12 options of settings, is suitable for work with the majority of industrial materials. The speed of sound, as well as other indicators, is chosen based on the type of material being studied. How to do this is written in the instructions. It is convenient to use the device, as it is equipped with a backlit LCD display, which displays all the necessary information.

The peculiarity of this model with “AliExpress” is automatic compensation of nonlinearity. This feature allows you to significantly improve the accuracy of measurements. In reviews, users write what they like, how the indication of the presence of contact with the surface works. Due to these features, the tester ranks among the best Chinese thickness gauges.

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