PosiTest FM/F/GM/G - Magnetic Coating Gauges

PosiTest FM/F/GM/G - Magnetic Coating Gauges

Magnetic Pull-Off Thickness Gauge for Non-Magnetic Coatings

DeFelsko PosiTest FM/F/GM/G

Magnetic pull off thickness gauge for the Non-destructive measurement of non-magnetic coatings (paint, enamel, plastic, galvanizing, metalizing, plating, etc.) on STEEL


  • Highly wear resistant Carbide Probe for longest life and continuous accuracy
  • Modern and up-to-date Gauge Scale ranges fit all applications
  • Conforms to national and international standards including ISO and ASTM


    • Extra rugged gauge housing, not affected by mechanical shock, water, acid or solvents
    • Unique overall gauge design: fully supported, positive positioning and no pivoting tendencies during measurement
    • Gauge can be used fully supported or with only the front probe area contacting the surface
    • Functions on a permanent rare-earth cobalt magnet, no battery
    • Explosion Proof - Refinery safe
    • 2 year warranty


        • Positive visual and audible indicators to designate when thickness reading is established
        • "V" grooves in probe housing and gauge base allow correct positioning on cylindrical objects
        • Compact, lightweight, precisely balanced and independent of gravity - gauge can be used in any position
        • GO / NO-GO button can be pre-set for rapid measurement
        • Probe contact and dial rotation all in a one-finger operation
        • Gauge is furnished with wrist strap, neck strap and instructions in a high quality leather case with belt loops for your convenience

          Available PosiTest models

          For: Hot dip galvanizing, hard chrome metalizing, paint, enamel, plastic coatings on steel.

          Scale FM

          0-80 mils


          ±0.2 mils up to 4 mils
          ±5% of the reading over 4 mils

          For: Electroplating, thin paint films, phosphating on steel.

          Scale GM

          0-8 mils


          ±0.04 mils up to 0.8 mils
          ±5% of the reading over 0.8 mils

          Scale F

          0-2000 µm


          ±5 µm up to 100 µm
          ±5% of the reading over 100 µm

          Scale G

          0-200 µm


          ±1 µm up to 20 µm
          ±5% of the reading over 20 µm

          Product Literature

          Description Part # Saved Price Select Option Add to
          DeFelsko PosiTest - Scale FM CT-DF-PTEST-FM $350.00
          DeFelsko PosiTest - Scale F CT-DF-PTEST-F $350.00
          DeFelsko PosiTest - Scale GM CT-DF-PTEST-GM $350.00
          DeFelsko PosiTest - Scale G CT-DF-PTEST- G $350.00