Measuring range: 0.0-5000μm High accuracy and good stability Dual use on ferrous/non-ferrous substrates Unique split type design, can be used in narrow space
The LS221 Coating Thickness Gauge is a specialist instrument for measuring the thickness of coatings on metal surfaces. The instrument combines the Hall effect and Eddy current principles to measure the thickness of non-ferromagnetic coatings on ferromagnetic metal substrates and the thickness of non-conductive coatings on non-magnetic metal substrates. The host and probe of LS221 is separate, which makes it easy for the user to view the data under complex testing conditions. It can be used in the laboratory and engineering field.
Hall Effect: can be used for the measurement of non-ferromagnetic coatings on ferromagnetic metal substrates.
Eddy current: can be used for the measurement of non-conductive coatings on non-magnetic metal substrates.
There are one four types of ferromagnetic metal elements at room temperature: iron, cobalt, nickel, and gadolinium.
Common non-ferromagnetic metals: copper, aluminum, zinc, chromium, etc.
| Measuring；principles | Substrate | Coating | Examples | Yes/No |
|---|---|---|---|---|
| Hall Effect | Ferromagnetic materials:；Iron, cobalt,；nickel, gadolinium | Non-ferromagnetic metal | 1. Galvanized iron；2. Iron copper plating | √ |
| Non-metal materials | 1. Iron spray paint；2. Iron spray powder coating | √ | ||
| Ferromagnetic material:；Iron, cobalt, nickel and gadolinium | Iron nickel plating | × | ||
| Eddy current | Non-ferromagnetic metal:；Copper, aluminum,；zinc, etc. | Non-conductive material | 1. Anodized aluminum surface；2. Copper spray paint | √ |
LS221 Coating Thickness Gauge is widely used in metal processing, coating, hardware, shipbuilding, aerospace and other fields.
LS221 Coating Thickness Gauge tests the coating on fire extinguisher
LS221 Coating Thickness Gauge tests the coating on ferrous material
LS221 Coating Thickness Gauge tests the coating on aluminum window sill
LS221 Coating Thickness Gauge tests the coating on the Cabinets
Feature
Mature digital probe technology
LS221 Coating Thickness Gauge adopts mature digital probe technology to keep the zero position stable without drift and frequent zero adjustment which solves the linearity of the instrument and ensures measurement accuracy
Iron and aluminum dual use, Identify substrate automatically
The LS221 coating thickness gauge adopt two measurement principles and can identify the substrate automatically. Measurement can be completed in 0.5 seconds
LS221 tests ferrous substrate in automatic mode
LS221 tests aluminum substrate in automatic mode
Three measurement modes available
The LS221 coating thickness gauge has three measurement modes:Fe mode, NFe mode and Fe/NFe mode
Portable and Convenient
The LS221 dry film thickness gauge has simple design and small size. It is easy to carry and operate
High sensitivity probe, High response speed
The LS221 digital paint thickness gauge has high sensitivity probe, the test response speed is very high and the data can be measured in 0.5 seconds
Rugged probe
Wear-proof ruby probe tip for long-term use with strong corrosion and abrasion resistance
Negative number display function to ensure the accuracy of the zero adjustment and improve the test accuracy
Not susceptible to interference due to temperature compensation technology and analogue digital signal functions
Energy saving and low energy consumption
Qualifications and Standards
LS221 coating thickness gauge conforms to the following standards：
GB/T 4956-2025 Non-magnetic Coatings on Magnetic Substrates-Measurement of Coating Thickness-Magnetic Method
GB/T 4957-2025 Non-conductive Coatings on Non-magnetic Basis Metals-Measurement of Coating Thickness-Eddy Current
DIN EN ISO 2808 Paints and Varnishes-Determination of Film Thickness
JJG-818-2018 Verification Regulation of Magnetic and Eddy Current Measuring Instrument for Coating Thickness
Packing
| No. | Item | Quantity | Unit |
|---|---|---|---|
| 1 | LS221 coating thickness gauge | 1 | Set |
| 2 | Fe plate of zero adjustment | 1 | Pcs |
| 3 | NFe plate of zero adjustment | 1 | Pcs |
| 4 | User manual | 1 | Pcs |
| 5 | Standard film | 1 | Pcs |
| 6 | Certificate/Warranty card | 1 | Pcs |
