About DeFelsko

DeFelsko Corporation, a leading U.S. Manufacturer of coating thickness gages and inspection instruments, has been delivering Simple, Durable and Accurate gages since 1965. Family owned and operated in Northern New York, their state of the art facility houses research, development, manufacturing, quality, sales, training and service departments.

Over the years, DeFelsko has pioneered many technologies including:

  • the first combination ferrous/non-ferrous gage to automatically recognize the substrate and take a measurement
  • the first hand-held ultrasonic coating thickness gage for non-metal substrates including plastic, wood, and concrete
  • the first fully-interchangeable inspection instrument, featuring compatibility with coating thickness, dew point, surface profile, soluble salt, ultrasonic wall thickness and hardness probes
  • the first ISO-compliant salt contamination measurement method, with no sharps or adhesive
  • the first hand-held, field-ready instrument for 3D-imaging of blasted surfaces and measurement of peak density and other variables

Starting with the mechanical PosiTest FM and GM, DeFelsko has shown a commitment to excellence in manufacturing and after sales support. 

DeFelsko actively participates in several key organizations (SSPC, NACE, ASTM, ISO) to improve and promote the science of coating inspection. DeFelsko is recognized as a premier American manufacturer of quality inspection instruments.

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We have one main objective...

Use the latest technological advances combined with over 50 years of experience to manufacture the most Simple, Durable, and Accurate inspection inspection instruments.

The result has been an unparalleled success...

At present, we have over 70 models of coating thickness gages and inspection instruments, used for a wide variety of applications in a broad range of industries - all vastly popular throughout the world.

Our gages are designed for the real world...

With unequaled handling characteristics and easy, trouble-free operation. They are simple to use and employ leading-edge technology. They come complete with a 30-day money-back guarantee.

DeFelsko offers service and expertise...

Our expert technical sales and support team has one goal: to provide a level of service that is above and beyond our customers' greatest expectations. Our staff is ready to provide advice by e-mail or phone. 

over 50 years of experience

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Please fill out the Sales Form for Sales related inquiries.
Map of New York with location call out showing Ogdensburg

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