ElektroPhysik Coating Thickness Gauges

SmarTest Bluetooth Coating Thickness Sensor

SmarTest is an intelligent wireless coating thickness gauge offering the highest technological standards for non-destructive coating thickness measurement and it relays sensor data via Bluetooth to your tablet, smartphone, or it can be combined with any digital sensor of the MiniTest 745 gauge series.
SmarTest is composed of a Bluetooth adapter that  The new concept of the wireless SmarTest sensor performs all tasks of a professional coating thickness gauge and is available at any time on smartphones and tablets.

The radio sensor SmarTest comes with 16 mm in diameter and 125 mm in length means somewhat it is like a thick ballpoint pen and weighs just 48 g / 1.7 oz. This means that you can carry the SmarTest with you anywhere.

You can connect any SIDSP sensor to SmarTest and cover a wide range of coating thickness measurement tasks.

Comfortable Apps can now turn smartphones and tablets into the effective evaluation and measuring devices. The new SmarTest concept consisting of an app and a wireless sensor offers the perfect solution for measuring coating thickness with the help of smartphones and tablets.
The SmarTest App functions as a device for evaluating and thus replaces a conventional coating thickness gauge.

The App functions include a clear display of current measuring value, statistical evaluation, storage of measuring values in files, 2-point calibration, measuring unit metric/imperial switchover, and export of the series of measurements in the CSV format. All the functionalities of a smartphone are available for data transfer.
For instance, you have the ease of sending your measuring data to any receiver by email. The intelligent SmarTest sensor is made to fit any jacket pocket. In combination with smartphones or tablets, this forms an ultra-modern full-set for experts on-site to measure coating thickness.

Long battery life: the sensor equipped with the LiFePo battery can function for up to 8 hours in continuous operation. Readings exceeding the set limits are indicated on the sensors’ green/red LED. SmarTest functions on old smartphone models as well as on the latest ones. The dual Bluetooth module ensures a long operating time in modern devices thanks to the Bluetooth low energy mode.

SmarTest is a most flexible solution: It can also be supplied in other combinations with any of the SIDSP®-sensors of the MiniTest 700 series to cover a wide field of different applications.

Complete Kit

Calibration set with calibration foils and reference zero test plate(s).
USB charger with micro-USB cable.
Operating manual.
Manufacturer‘s certificate.
Storage case.


It is very simple to operate the SmarTest:

Start the SmarTest app on the mobile device.
Switch on the wireless sensor and the Bluetooth connection is established automatically.
Take measurements.

The SmarTest app helps you through all steps with context-sensitive help texts in 4 languages currently.


Non-destructive coating thickness measurement of:

Non-magnetic coatings like varnishes, enamels, chromium, and zinc on ferromagnetic base materials (e.g. steel).

Insulating coatings like varnishes and anodizing aluminium on nonferrous metals (e.g. aluminium, austenitic stainless steel, brass).

Measuring Modes

There are two measuring modes available:

Single value mode
The measurement values are taken individually and displayed. This enables you to take coating thickness values of the object to be measured at multiple points and then to evaluate them statistically.

Continuous mode
After placing the sensor the measuring values are taken continuously and displayed. This mode is suited for calculation of layer thickness distribution on a restricted surface and to locate the thin and thick sections. The measuring values calculated on continuous mode can be saved in the statistics by briefly pressing the power button.

Control / Data Transfer

Sensor control and data transfer of the measuring values is done via Bluetooth 4.0 / Bluetooth Smart (low energy). The sensor and mobile device can be placed about 10 m away from each other, even farther under good transmission conditions.

App Functions

The SmarTest app shows the current measuring values, the statistical evaluation, and helps store control and calibration of the sensor.
There is an option of the metric (μm, mm) and imperial (miles) formats for display and processing of measuring values.
Storage and transfer/download of measuring values is done in the CSV format.


Three calibration modes are available:

Manufacturers calibration

1-point calibration on the uncoated object to be measured (zero point calibration)

2-point calibration (zero point calibration + 1 layer/sheet)

For more details Please Request a quote now..!!


  • Precision coating thickness gauge with digital sensor.
  • Can be connected to any SIDSP sensor.
  • Transfer of measuring data via Bluetooth, range of approx. 10 m.
  • Display and operation by app in 4 languages currently (German, English, French and Chinese).
  • Wear resistant probes with a virtually unlimited life.
  • Optimal temperature compensation by individual compensation characteristic curves.
  • Battery charge lasts for more than 8 hours of operation.
  • Internal battery control prevents incorrect measurements caused by low battery charge.
  • Batteries are charged using a mini USB socket.
  • High precision characteristic curves with up to 50 support points in the manufacturer’s calibration.


Measuring range F 1.5: F: 0 ... 1.5 mm / 0 ... 60 mils , FN 1.5: F: 0 ... 1.5 mm / 0 ... 60 mils N: 0 ... 0.7 mm / 0 ... 30 mils
Measuring method F: Magnetic induction N: Eddy current
Accuracy ± (1 µm + 0.75% of reading) ± (0.04 mils + 0.75% of reading)
Repeatability ± (0.5 µm + 0.5% of reading) ± (0.02 mils + 0.5% of reading))
Low range resolution 0.05 µm / 0.002 mils
Operating temperature -10 °C ... 60 °C / 14 °F ... 140 °F
Storing temperature -20 °C ... 70 °C / -4 °F ... 158 °F
Power supply LiFePO4 battery operating time approx. 8 hours continuous operation
Interface Bluetooth® 4.0 / Bluetooth Smart® / Mini-USB connector for charging, power supply and data transfer
Dimensions 125 mm x Ø 16 mm / 4.9” x Ø 0.63”
Weight 48 g / 1.7 oz

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