If the device you are searching for has been watermarked, then its accuracy has not been proven by clinical validation and should be avoided.
Medaval provides the only up to date international clinically validated listings for Blood Pressure Monitors, Blood Glucose Meters, and Pulse Oximeters. If your device is not listed, then you to have question its accuracy. An inaccurate device, puts you and your families health at risk.
We are a scientifically lead organisation, advising all consumers of the dangers associated with non-validated cardiovascular medical devices. Advertising, online sellers and comparison sites only want the sale. They do not care about the accuracy of the device and they are not qualified to test and falsely claim the Accuracy of the device. The public needs to be aware of this.