Eddy Current Testing Solutions

Criterion NDT's Eddy Current Test Instruments Help Manufacturers Validate Product Quality Prior to Shipment.

ST-11

Heat Treat & Material Structure Test Instrument

cr-11

Crack & Flaw Test Instrument

Our highly sensitive instruments improve ferrous and non-ferrous product quality control.

Why Top Manufacturers Trust Us

The Criterion NDT team averages over 30 years experience in the eddy current industry.

We validate product quality in-line & in real time

We reduce costly scrap and liability risks

We seamlessly integrate into your existing production workflow

We consistently exceed customer quality expectations

See What Our Customers Have To Say

“Our company has worked with Criterion NDT for many years. We count on Criterion NDT’s accurate, reliable technology when verifying threads in tapped holes, correct heat treat, surface and sub-surface cracks and other material defects. From single instruments and probes to complete turnkey automated test machines, Criterion NDT is your best choice.”

October, 2025

Kurt

Business Owner

“The ST-11 unit has been working well, thanks for all your help bringing that in and helping to set it up!”

June, 2023

Austin

Manufacturing Engineer

“You guys are awesome! Thank you very much for supporting us in such short notice.”

June, 2022

Carlos

Operations Engineer

“…the user interface of the CR-11 is very good and quite intuitive”…”we are quite happy with all of the CR-11’s that we have placed into production so far...”

February, 2024

Ben

Controls Engineer

“I really greatly appreciate the support Criterion has given us to this point. It is really comforting knowing that you guys stand behind your equipment and offer so much assistance with getting it going. This is not something we are used to with the previous NDE Instruments we have used. The first CR-11 has been running for quite some time now and we have had zero complaints.”

April, 2022

Jeff

Controls Engineer

“We really appreciate the time you have taken to pass on this savings on to us pertaining to our coils. This is something that doesn’t happen very often and we really appreciate it.”

December, 2024

Mike

Tool Crib

“Received today, installed and working great. Thank you!” … “Again, thank you Karl for the support, I wish everyone was this responsive!”

September, 2024

Eugene

Manufacturing Engineer

“Hi Joe, Your visit was very beneficial to us. There is no doubt that the number of parts that I would normally have to section and examine has dropped a fair amount. Thanks again for the help.”

February, 2014

Christopher

Metallurgical Engineer/Laboratory Supervisor

"Joe, The cables worked great! The difference was amazing. When we plugged the cable in we saw a 30% to 50% reduction of the size of the data ball. When you combine the cables with the best practices you taught us before, the number of false negatives have nearly disappeared."

February, 2014

Rick

Value Stream Manager

“Thank you again for your professionalism and assistance.”

November, 2024

Brady

Quality Engineering Manager

“Joe, Let me start by saying thank you very much for your time yesterday, your insight and knowledge was very valuable to us.”

March, 2023

Bob

Mechanical Engineer

Criterion NDT Provides Eddy Current Non-Destructive Testing to Companies Across the Globe.

Image of world map with client locations

Our products keep a watchful eye on production lines around the world.

We help manufacturers

Detect & Sort rejects