Gurley S.P.S. Tester - Measures Smoothness, Porosity, Softness



ITEM MODEL: Gurley Precision Instruments No. 4190 S-P-S Tester

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Gurley Surface Tester 4190 for measuring smoothness, porosity and softness of materials


ITEM MODEL: Gurley Porosity Tester Model 4190

CONDITION: This device was last used by a large digital printing manufacturer. It is in working condition. Please review pictures carefully. 

DESCRIPTION: The Gurley SPS Tester was originally developed to test the printing quality of paper. In more recent years, its use has spread to other industries in testing or checking other material surfaces for smoothness, softness, and porosity. In dealing with the printability of paper, it has been found that smoothness is the most important factor in printing quality and softness is usually secondary. This device measures a given air flow through the sample for porosity tests and leakage across its surface(s) for softness or smoothness tests. This is accomplished by changing a variety of adapter and clamping plates.


  • Gurley Precision Instruments No. 4190 S-P-S Tester 
  • Copy of Instructions

Our Guarantee

Our Guarantee

We inspect and test every piece of equipment we sell, and we capture the testing process in our pictures and videos. This usually provides our clients with the assurance that they need.

If you are interested in a particular piece of equipment, and would like to see the results of additional tests that we have not performed, we offer the following services:

  • Contact us to arrange an appointment at our Toronto Canada head office, where you may inspect and test the equipment yourself.
  • If a visit to our office is inconvenient, you may provide us with step-by-step testing instructions. We will then carry out those tests and capture the process via pictures, video, or live video stream.

After your equipment purchase, if you are not completely satisfied, our Guarantee offers you a 30 day return period. During this period, you may return the equipment to us with no questions asked, we only ask that you cover return shipping costs and a 20% restocking fee on our invoice price. 

Please contact us by phone or e-mail if you have any questions.