The new PHASE II PTG-3525 can perform two different methods of calculating thickness measurement by utilizing the characteristics of both eddy current and magnetic induction. 
Testing performance is both non-destructive and extremely accurate. 
With this state of the art thickness gage, you can easily detect the thickness of nonmagnetic coating on a magnetic substrate (ferrous) or an insulating coating on a non-magnetic conductive substrate (non-ferrous) utilizing our version that comes with 2-external probes. 
The PHASE II PTG-3525 can be used in many areas of industry including manufacturing, general engineering, commercial inspection, etc. Main Technical Data
  • Measuring range: 0-1000 u m max. or 0-40 mils
  • Resolution: 0.1 u m / 0.01mils(0-99u m) or 1u m (over 100u m)
  • Guaranteed tolerance: After one-point calibration: +/- 1-3%n or 2u m (whichever is greater)
  • Display: 4 digits (digit height = 10mm/0.4”)
  • Min. measuring area: 0.2” x 0.2” (5mm x 5mm)
  • Min. radius of curvature: Convex: 0.12” (3mm) Concave: 1.2” (30mm)
  • Min. substrate thickness: Ferrous: 20 mils (0.5um) Non-ferrous: 2 mils (50u m)
  • Calibration: Zero Calibration Foil calibration
  • Max. Surface temperature of test object: 302 degrees F (contact time max is 2 seconds)
  • Power source: 4 AA batteries
  • Dimensions: 161 x 69 x 32mm
  • Weight: 9oz. (260g)
The PTG-3525 comes complete with 2pc external probes. 1pc Ferrous and 1pc Non-Ferrous probe, 2 substrate samples(steel, aluminum), 4 calibrated thickness specimens, carry case, batteries and operation manual.
Model No. Description
PTG-3525 Coating Thickness Gage w/ External Probes

Additional information

Weight 5 lbs
Dimensions 14 × 10 × 6 in