156 USB Coating Thickness Gauge

Factory calibrated:
The 156 USB comes factory calibrated, tested, with batteries fitted for immediate use right out of the box!

The 156 USB is our highest specification gauge that includes a USB port that allows interface to a PC and data download via the included software. The ability to download readings to computer is ideal for professional detailers, laboratories and industrial users who wish to maintain and analyse records of readings taken. Other additional features of the 156 USB include its:

  • Electronic menu system
  • Continuous reading mode (read along a surface without lifting gauge from surface) as well as spot reading mode
  • Selectable on screen statistics display: average, minimum, maximum, number of readings, standard deviation
  • High and Low reading alarms

Our paint thickness gauges are high specification, professional grade measuring devices suitable for consumer and commercial use. The 156 USB is suitable for a variety of applications in a range of settings, including the following:

  • Fabricators
  • Engineering companies
  • Aerospace and shipbuilding companies
  • Auto dealers and inspectors
  • Bodyshops
  • Powder coaters
  • Painters
  • Coating inspectors
  • Car detailers
  • Used car buyers
  • ...and other situations where accurate measurement of coating thicknesses on metal substrates is required
Dual probe technology measures coatings on both ferrous and non-ferrous metals:

Unlike lower specification gauges, the 156 USB has the ability to measure coating thicknesses on ferromagnetic (e.g. steel) and non-ferromagnetic (e.g. aluminium) metal substrates via its integrated dual sensors, which increase compactness. They automatically detect the substrate metal type and use the appropriate measuring technology (magnetic induction or eddy current) to calculate the coating thickness, reducing user burden and increasing efficiency. Inferior gauges are limited to measuring on either ferromagnetic or non-ferromagnetic substrates, or require manual removal and switching of sensor type and selection by the user.

  • Magnetic Induction
    Measures thickness of non-magnetic coatings (e.g. paint, plastic, enamel, rubber, powder coating, zinc chromium, copper, tin) on ferromagnetic metal base (e.g. iron, steel)
    Examples: Paint on a steel car body (most cars today). Powder coating on steel railings. Vinyl wrap and paint thickness on a car body.
  • Eddy Current
    Measures thickness of electrically non-conductive coatings (e.g. paint, plastic, enamel, rubber, powder coating, anodising) on non-ferrous metals (e.g. aluminium, brass, zinc).
    Examples: Paint on an aluminium car body (e.g. Ferrari 360, Jaguar XK8, Audi A8). Powder coating on alloy wheels. Vinyl wrap and paint thickness on a car body.

Feature rich:

The 156 USB gauge is fast and easy to use - simply hold the sensor against the surface to be measured and the coating thickness is automatically displayed on the LCD screen. The reading is also automatically stored to the inbuilt memory, from which the readings can be recalled. The device is a feature rich, high specification, high accuracy measuring device.

Download readings to a PC:

Readings taken with the 156 USB can be downloaded to a PC for storage or analysis. The gauge is connected to the PC via the supplied USB lead and the application software can then be used to download readings to the PC. The software can then be used to list, show statistics for and chart a group of readings. Additionally the readings can be exported (to a CSV or TXT file) for use in another application (such as Microsoft Excel) for further analysis. The gauge comes complete with driver and application software on CD, which is compatible with Windows 2000, XP, Vista and 7.


Measures on steel? Yes
Measures on aluminium? Yes
Measures on cylindrical surfaces? Yes (V-notched probe for stable placement)
Integrated probes with auto selection? Yes
Auto measure when placed on surface? Yes
Reading memory? Yes (400)
Auto store readings to memory? Yes
Statistical functions? Yes (max, min, mean average, std dev)
Backlit screen? Yes
Range: 0-1,250µm, 0-50mil
Minimum resolution: 0.1µm (1/10,000mm)
Connect to PC and download readings? Yes (USB lead and software included)

Types of coating that can be measured:

Paint Yes
Powder coat Yes
Fire resistant paint Yes
Rubber Yes
Plastic Yes
Enamel Yes
Vinyl Yes
Zinc plating on steel Yes
Chrome plating on steel Yes
Anodising on aluminium Yes
Any non-magnetic coating on ferrous substrates
(e.g. steel)
Any electrically non-conductive coating on non-ferrous substrates (e.g. aluminium): Yes

Technical specifications:

Units: µm (aka micrometer or micron = 1/1000mm) and mil (aka Thou = 1/1000 inch)
Range: 0-1,250µm, 0-50mil
Resolution: 0.1µm (<50µm), 1µm (>50µm), 0.1mil
Accuracy: Up to 850um: +/-(1µm+3%) Fe, +/-(1.5µm+3%) NFe. Over 850µm: +/-5% Fe and NFe
Memory: 400 readings (80 direct and 320 group readings)
Minimum substrate thickness: 0.5mm Fe, 0.3mm NFe
Sensor type: Combined Ferrous and Non-Ferrous
Measuring technology: Magnetic induction and eddy current
Dimensions: 114 x 54 x 27 mm
Weight: 110g (excluding batteries)
Battery type: 2 x AAA
Standards: CE approved