Has a very small, unique magnet which can be placed with pin-point accuracy on extremely small parts, and on peaks and valleys. Ideal for measuring non-magnetic coatings such as paint, enamel, plating, hot-dip galvanizing on steel.

Operating The PosiPen

Make sure the surface to be measured is clean and free from oil and grease. Hold the PosiPen at a right angle to the surface to be measured. Place the tip of the gauge on the coated surface and allow the magnet to contact.
Pull it straight back from the object while keeping close watch on the appropriate indicator. Note the reading when the magnet releases. Repeat if necessary.

Posi Pen C1

PosiPen measures:

  • on hot surfaces
  • on small surfaces
  • in different positions

Manufactured in three versions:

  • Model A for measurements on surfaces with normal temperatures
  • Model B for measurements on surfaces with extreme temperatures (between -100°C and +230°C)
  • Model C ferrite comparator

Models A and B have two scales, microns (metric) and mils (inch)


Range: 0.25 to 20 mils (inch)
Tolerance ±10% and 0.1 mil

Range: 5 to 500 microns (metric)
Tolerance ±10% and 2.5 microns

Models A and B are calibrated to NIST calibration standards.

Ferrite Comparitor

Some objects become excessively magnetic. For example 300 series stainless steel is non-magnetic but becomes
magnetic over time. Certain welding seams become magnetic compared to the surrounding metal. Model C allows you to
compare ferrite content to a known value.

Model C has two scales:

Ferrite 1

Ferrite content measuring range: 0-10 linear units to compare Ferrite content to an known value

Posipen Thick 1

Coating thickness measuring range: 0.25 to 20 mils (inch scale) Tolerance: +10% and +0.1 mil

PosiPen Video



Model A

  • £175 + VAT

Model B

  • £210 + VAT

PosiPen C

  • £175 + VAT

PosiPen Selection (includes VAT)

Download PosiPen Literature Here