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The PM4 is a specially-designed instrument for accurate measurement of moisture content in running paper. The instrument can also be used to measure paper rolls, cardboard and pulp.

The PM4 is equipped with an infrared temperature sensor capable of measuring material temperature up to 125°C. The instrument automatically compensates moisture levels based on material temperature up to 80°C. The built-in sensor on the rear-side of the gauge provides a measuring range of up to 25% with a measuring resolution of 0.1%.

A datalogger for up to 10,000 readings is provided for recording purposes and the instrument is equipped with a USB output for data transfer. Allows user to build, store and name custom calibrations for specific paper types. PM4 provides for Non-destructive measurement through packaging!


  • Measurement within seconds without prior treatment of samples
  • Contact-free infrared temperature measurement
  • Automatic temperature compensation
  • Temperature can be set to °C or °F
  • Manual saving of results, autodatalog for 10000 logs with measuring point report
  • Includes USB Data output and software
  • Allows user to build, store and name custom calibrations for specific paper types
  • Li-Ion 1950mAh Re-Chargeable Battery (USB Cable included)

Complete Kit

Supplied as a complete kit including gauge, test block, protective cover, batteries, LogMemorizer Software and USB Cable

Related Products

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- Measuring range 2% to 25% moisture content with resolution of 0.1%


Measuring Range1% to 25% moisture content
Resolution0.1 % moisture content
Measuring depth50 mm (2 inches)
Paper temperature32 to 176 ° / 0 to +80 °C
Infrared temp measurement°25 to +125°C / °13 to 257 °F
Temperature Compensation Range0 to 80°C
Temperature Resolution0.1°C
Temperature Units°C or °F
Data LoggerAutomatic data log for 10.000 logs with measuring point report
Data OutputUSB interface (supplied with data transfer cable & software)
PowerLi-Ion 1950mAh Re-Chargeable Battery (USB Cable included)
Warranty2 years


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Replaced by PM5 - Please contact us for pricing and availability.
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