The first non-automated mercury-free blood pressure measurement device to pass the International Protocol for blood pressure measuring devices in adults (John W. Graves, Mary Tibor, Blaithnead Murtagh, Lois Klein and Sheldon G. Sheps, Blood Pressure Monitoring 2004; 9:13-17).

Self-calibration to zero each time the device is switched on ensures reliable accuracy. Suitable for any patient group (including pregnant women and the elderly) where mercury was used in the past. Displays every 2mmHg, easier to read than mercury, calibrated to 0.4mmHg, cuff deflation rate displayed,

any cuff size can be used, frequent calibration checks not required.