Theoretically, a Delcom eddy current meter could measure from zero to infinity ohms/square. However, in reality, such a range is not practical or necessary. Over 30 years of research, Delcom has pushed eddy current technology so that the range of each of our sensors spans five orders of magnitude. This range is more than enough for most applications. Ranges are physically set in the sensors before they leave our factory, so the user must carefully choose the best range for the intended application prior to purchase.