Testing unit capable of determining whether or not a passive chromium oxide layer is present on stainless steel. This device is based on a technology called open circuit potential and uses an electrochemical process to determine the absence or presence of the protective chromium oxide layer on stainless steel. Stainless steel surfaces must be cleaned prior to use, and the acidic solution used in the test probe must be neutralized after use, possibly with Surfox-N neutralizing solution from Walter Surface Technologies. Test data can be stored and recalled for later use, allowing you to enhance your quality control process and demonstrate to customers that your work will not be subject to corrosion.

Each kit includes the testing unit, a 4 PIN connection cable, a USB cable, a CD with software that can be downloaded onto any computer, a calibration control plate, an owner's manual with operating instructions and a carrying case.