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About SmarTest Wireless Coating Thickness Sensor

The SmarTest is a handheld wireless coating thickness measurement instrument with Bluetooth that turns your smartphone or tablet into a coating thickness measurement tool.

The intelligent wireless coating thickness gauge is perfect for non-destructive coating thickness measurement and relays your  data readings via Bluetooth to your tablet, smart phone or to the coating thickness gauge MiniTest 745.

The SmarTest sensor is 16 mm in diameter, 125 mm  in length and weighs just 48g. It’s similar in size to a ballpoint pen so you can carry it in your top pocket along with your smartphone.

The standard instrument is supplied with the F 1.5 (Ferrous) or FN 1.5 (Non-Ferrous) sensor.  Alternatively you can purchase any SIDSP sensor available in the range, simply connect it to the SmarTest gauge and cover a wide range of coating thickness measurement tasks (see full list of sensors in the accessories list).

The easy to use SmarTest App can be downloaded free of charge on your mobile device and has a step by step guide to operate the instrument:

  • Start the SmarTest app on the mobile device
  • Switch on the wireless sensor and the Bluetooth connection is established automatically
  • Take measurements
  • Measurement values will be displayed, stored  & can be exported in CSV format

Features & Benefits

SmarTest Wireless Coating Thickness Sensor

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


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 anodising aluminium on nonferrous metals (e.g. aluminium, austenitic stainless steel, brass)


Property Value F: Magnetic Induction; N: Eddy Current
Measuring range F 1.5: F: 0 to 1.5 mm
FN 1.5: F: 0 … 1.5 mm /
N: 0 … 0.7 mm
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
Minimum curvature radius convex: 1.5 mm / 59 mils
concave: 7.5 mm / 295 mils
Minimum measuring area Ø 5 mm / 197 mils
Minimum substrate thickness F: 0.3 mm / 12 mils
N: 40 µm / 1.6 mils
Operating temperature -10 °C to 60 °C / 14 °F to 140 °F
Storing temperature -20 °C to 70 °C / -4 °F to 158 °F
Interface Bluetooth® 4.0
Bluetooth Smart®
Mini-USB connector for charging, power suppy and data transfer
Power supply LiFePO4 battery
operating time approx. 8 hours continuous operation
Norms and standards DIN EN ISO 1461, 2064, 2178, 2360, 2808, 3882, ASTM B244, B499, D7091, E376
Dimensions 125 mm x Ø 16 mm / 4.9” x Ø 0.63”
Weight 48 g / 1.7 oz

All Downloads

Filename Size Download
SmarTest Product Brochure 1.40MB Download

Ordering Information

Part Number Description
80-126-0000 SmarTest Bluetooth Adapter Wireless Coating Thickness Measurement (Please Choose Required Probe from Accessories Tab)
80-126-0300 SmarTest complete set with F1.5 probe for non-magnetic coatings on iron or steel
80-126-0200 SmarTest complete set with FN1.5 probe for non-magnetic coatings on iron or steel and all electrically insulating coatings on non-ferrous metals

Packing List:

  • SmarTest with choice of sensor
  • Calibration set with calibration standards and zero reference plate(s)
  • USB charger with mini USB cable
  • Operating manual
  • Manufacturer’s certificate
  • Storage case


Part Number Probe Description F: Magnetic Induction; N: Eddy current
80-135-1600 F 0.5 0..500 µm
80-135-2800 F05M-0, micro sensor straight version 0..500 µm
80-135-2900 F05M-45, micro sensor 45° version 0..500 µm
80-135-3000 F05M-90, micro sensor 90° version 0..500 µm
80-135-0000 F 1.5 0…1500 µm
80-135-2100 F 1.5-90, for internal tube measurement 0…1500 µm
80-135-1700 N 0.2 0…200 µm
80-135-3100 N0.3M, micro-sensor straight version 0…300 µm
80-135-3200 N0.3M-45, micro sensor 45° version 0…300 µm
80-135-3300 N0.3M-90, micro sensor 90° version 0…300 µm
80-135-0100 N 0.7 0…700 µm
80-135-2200 N0.7-90, for internal tube measurement 0…700 µm
80-135-0200 FN 1.5 0…1500 µm (F) 0…700 µm (N)
80-135-2300 FN1.5-90, for internal tube measurement 0…1500 µm (F) 0…700 µm (N)
80-135-0300 F 2 0…2000 µm
80-135-3400 F 2.6 special sensor for measurement on car bodies 0…2600 µm
80-135-3500 FN 2.6 special sensor for measurement on car bodies 0…2600 µm (F) 0…1300 µm (N)
80-135-0400 F 5 0…5000 µm
80-135-0500 N 2.5 0…2500 µm
80-135-0600 FN 5 0…5000 µm (F) 0…2500 µm (N)
80-135-2400 N 7 0…7000 µm
80-135-0700 F 15 0…15 mm

  • Last updated: June 2024
  • Version: 1.0

Statements, technical information and recommendations contained herein are based on tests we believe to be reliable but they are not to be construed in any manner as warrantees expressed or implied. The user shall determine the suitability of the product for his intended use and the user assumes all risk and liability whatsoever in connection therewith.