Linshang car paint meter, also called mil gage, is a painting thickness gauge used to test automotive coating thickness, can identify the substrate automatically. Linshang paint thickness gauge series products can be used in various fields such as automotive paint film thickness testing, fireproof and anticorrosive coating thickness testing, etc. The dual-purpose probes with iron and aluminum have simple operation and high accuracy. 

For detailed selection and common problems of Linshang paint film meter, please click "Paint Thickness Gauge Selection and FAQ" for details.

LS225+F500 Coating Thickness Gauge

1.Measure ultra-thin plating thickness
2. Adopt digital oscillation technology
3. Test fixture is optional
4. Suport 1-5 points calibration


LS220 Automotive Paint Meter

1.Measuring range:0.0-2000μm
2.Fast measurement, 0.5s measuring interval
3.No calibration, just zero adjustment
4.With integrated probe,More convenient to carry out


LS220B Automotive Paint Meter With Bluetooth

1.Bluetooth version,save test data on the mobile app and test report can be printed
2.Digital probe with stable data
3.Highly sensitive probe, measuring one data within 0.5S
4.Professional for second used car paint surface thickness detection


LS221 Coating Thickness Gauge

1.Measuring range:0.0-2000μm
2.Fast measurement, 0.5s measuring interval
3.No calibration, just zero adjustment
4.With cable probe,suitable for testing narrow space


LS220H Dry Film Thickness Gauge

1.Highly sensitive probe, measuring one data within 0.5S
2.For both iron and aluminum,automatically switched on magnetic and non-magnetic substrates
3.Digital probe, keep the zero position stable for a long time without drifting
4.High accuracy and good repeatability


LS223 Coating thickness gauge+F3N3 Probe

1.Measuring range:0.0-3000μm
2.Fast measurement, 0.5s measuring interval
3.No calibration, just zero adjustment.
4.With temperature compensation function and digitalizing analog signal function,can provide an excellent measuring accuracy


LS223 Coating thickness gauge+F5N3 Probe

1.Measuring range: Fe:0.0-5000μm,NFe:0.0-3000μm
2.Fast measurement, 0.5s measuring interval
3.No calibration, just zero adjustment.
4.With temperature compensation function and digitalizing analog signal function,can provide an excellent measuring accuracy


How to Choose Suitable Coating Thickness Gauge?

I. Coating Thickness Gauge by Industry

Linshang coating thickness gauge can measure non-magnetic coatings on various magnetic metal substrates (such as steel, iron, etc.) and non-conductive coatings on non-magnetic metal substrates (such as aluminum, copper, zinc, etc.) .

1. Automobile and used car industry

The paint film thickness of car surface is measured by an automotive paint meter to determine whether the used car has been repainted, sheet metal or other repairs. The used car is evaluated based on this.

2. Various industrial fields (especially surface treatment industry)

Thickness of anti-corrosion, fire-proof, anti-corrosion, anti-wear, thermal insulation and other materials can be measured by coating thickness gauge, such as paint, coating, ink, anodized layer, electroplated layer, thermal spray coating, etc.

coating thickness gauge

3. Thickness testing of other materials based on metal

Such as film, glass, plastic, rubber, ceramics, enamel, etc. (perform zero adjustment with provided zero adjustment plates and test thickness of other non-magnetic metal materials).

II. How to Choose Automotive Paint Meter for the Used Car Industry?

We have three models of automotive paint meters: conventional type LS220, Bluetooth automotive paint meter LS220B and low temperature resistant automotive paint meter LS230. The measurement range, measurement accuracy, resolution and other main parameters of these three car paint meters are all the same. If you have the following requirements:

1. No special requirements

Please directly choose LS220 automotive paint meter

2. Store measurement data or Bluetooth

Please choose LS220B automotive paint meter

LS220B automotive paint meter can transmit test data to mobile phones via Bluetooth. Users can record and view multiple sets of test data on the mobile phone APP. It can generate and analyze automotive paint film thickness test reports.

3. Use in low temperature environment

Please choose LS230 automotive paint meter

LS230 automotive paint meter has low-temperature resistant OLED, which can work normally in the temperature range of -40℃-50℃. There will be no failure of data display at low temperatures.

III. How to Choose Coating Thickness Gauge in other Industries?

If you buy a coating thickness gauge not to measure the thickness of automotive paint film, then you can choose LS220H, LS221, LS223 and LS225 four coating thickness gauges. Please follow the prompts below to select a suitable coating thickness gauge.

1. Built-in sensor or an external sensor probe?

  • The LS220H coating thickness gauge has integrated probe, which can be operated with one hand. The operation is relatively simple.

  • The LS221, LS223 and LS225 coating thickness gauges have external probes. The probes of these three coating thickness gauges are connected to the host through a line. The probe is very small and can be placed in a narrow space or measured when the position is higher or lower, the display screen of the host is directly facing the staff to facilitate reading.

2. Ultra-small size or irregual shaped workpiece? 

  • If you want to measure a metal material with a special shape or a small size and a large arc, please choose the LS225 coating thickness gauge.

  • If the diameter of the material you measure is greater than 25 mm and there is no obvious arc, please choose LS220H, LS221 and LS223 coating thickness gauges.

3. Large thickness, ordinary thickness coating or ultra-thin coating?

  • If you want to measure the thickness of ultra-thin plating layer (<500μm), please choose LS225 plating thickness gauge

  • If you want to measure the coating thickness within 2000μm (2mm), please choose LS220H or LS221 coating thickness gauges.

  • If you want to measure the coating thickness of large thickness, please choose LS223 coating thickness gauge, which has two probes to choose from:
    The measuring range of F3N3 is 0-3000μm (magnetic and non-magnetic metal substrate)
    The measurement range of F5N3 is 0-5000μm (magnetic metal substrate), 0-3000μm (non-magnetic metal substrate)

IV. FAQ about Coating Thickness Gauge

1. What is the car paint film thickness?

The car paint film thickness is not an absolute value. The original paint thickness of different brands of cars is not exactly the same. Even the paint film thickness at different locations on the same car is slightly different.

The paint film thickness on the roof of some cars may be only about 80μm, while the paint film thickness in other places may be 120μm. When measuring the paint film thickness of the car, the most important thing is to detect the uniformity of the paint film thickness at each position. When measuring a car of an unfamiliar model, if the original paint thickness cannot be determined, the car roof paint film thickness can be used as a reference to compare the thickness of other locations. Because the roof location is not prone to scratches or impact, other paint film thickness at the location is slightly higher than the paint film thickness on the car roof. The user can find experience from multiple measurements. However, if 100 μm is measured on the roof and 300 μm is measured elsewhere, then the thicker area is likely to be repainted or scratched.

2. What is the measuring principle of coating thickness gauge? What do "Fe" and "NFe" stand for?

  • Linshang coating thickness gauge (except LS225 plating thickness gauge) adopts magnetic induction and eddy current principle.

  • The instrument can automatically recognize "Fe (ferrous)" and "NFe (non- ferrous)" two different metal substrates. It is recommended to use the "Fe (ferrous)" mode for measuring magnetic metal substrates (such as steel, iron) and the "NFe (non- ferrous)" mode for measuring non-magnetic metal substrates (such as aluminum, copper). For the substrate type, you can also select the "Auto" mode. The coating thickness gauge can automatically recognize the substrate type and switch the measurement mode.

3. What is the response speed of Linshang coating thickness gauge?

Linshang coating thickness gauge response speed is very fast compared with other coating thickness gauges on the market. It uses a highly sensitive probe with a very fast response speed of only 0.5s. For the actual test results, please watch the following video:

4. What are "mil" and "μm"? How to convert the coating thickness gauge unit?

  • The terms “mil” and “micron” are units of thickness measurement.

  • In the English system, 1 mil = 0.001 inch

  • In the metric system, “1 μm” means a micron, 1 μm = 0.001 mm

  • To convert Mils to Microns: 1 mil = 25.4 μm