REED ST-156 Coating Thickness Gauge, 0-1250µm/0-50mils


This coating thickness gauge features one or two point calibration, user adjustable high/low alarms and USB interface to further analyse results in the included software. The ST-156 is capable of storing up to 400 readings and includes two new measuring modes (Single and Continuous).


  • Magnetic induction for ferrous substrates
  • Eddy current measurement for non-ferrous substrates
  • Easy-to-read backlit LCD display
  • One or two point calibration
  • Zero adjustment button
  • Memory stores up to 400 readings
  • User adjustable high/low alarms
  • Min/Max and Average functions
  • USB interface includes software
  • Low battery indicator and auto shut off


Measuring Range 0 to 1250µm
0 to 49.21mils
Accuracy 0 to 850µm: ±3% +1µm
850 to 1250µm: ±5%
0 to 33.46mils: ±3% +0.039mils
33.46 to 49.21mils: ±5%
Resolution 0 to 50µm: 0.1µm
50 to 850µm: 1µm
850 to 1250µm: 0.01mm
0 to 1.968mils: 0.001mils
1.968 to 33.46mils: 0.01mils
33.46 to 49.21mils: 0.1mils
Measurement Modes Single and Continuous
Display LCD
Backlit Display Yes
Min/Max/Average Readings Yes
Zero Button Yes
Minimum Curvature Radius Ferrous: 1.5mm (59.06mils)
Non-Ferrous: 3mm (118.1mils)
Minimum Area Diameter Ferrous: 7mm (275.6mils)
Non-Ferrous: 5mm (196.9mils)
Minimum Substrate Thickness Ferrous: 0.5mm (19.69mils)
Non-Ferrous: 0.3mm (11.81mils)
Auto Shut-off Yes (after 3 mins, off)
Low Battery Indicator Yes
Power Supply 2 AAA Batteries
Internal Memory Yes (up to 400 readings)
PC Connectivity USB Cable
Software Yes (Included)
Software OS Compatibility Windows XP / Vista / 7
Product Certifications CE
Operating Temperature 32 to 104°F (0 to 40°C)
Storage Temperature -4 to 140°F (-20 to 60°C)
Operating Humidity Range 20 to 90%
Dimensions 4.7 x 2.4 x 1.25" (120 x 63 x 32 mm)
Weight 6.17oz (175g)