By Bosch + Sohn™, this 100% German-made blood pressure monitoring instrument features Shock Protection Technology certified by the German Institute of Metrology and the patented 2-in-1 tube technology eliminates jumping dial during inflation. With its elite craftsmanship, it is no wonder that 77% of all German doctors use Bosch + Sohn™ blood pressure monitoring instruments. A precise, and certified 300mmHg manometer attains the accuracy of +/- 3 mmHg without pin stop, and features an easily identifiable high-contrast dial. The German movement inside each gauge is painstakingly assembled and tested by expert craftsmen with patience, dexterity, and fanatical attention to detail. Every gauge is stress-tested 3,000 times and calibrated five times to achieve the highest level of lasting precision. Lifetime calibration with 3-year product warranty. Resistant to abrasion, chemicals (chlorine and peroxide), and moisture, the adult Velcro® cuff is constructed of high-molecular polymer nylon. Sized to meet American Heart Association recommendations, the artery indicator label and index range further ensure proper cuffing for correct arterial compression. The single tube seamless inflation bag is constructed of crack-resistant, non-sticking, high-density hypoallergenic latex-free PVC. The universal bladder tube enables compatible cuff exchange with all MDF® and other major brands of blood pressure systems. Ergonomic palm design enables precise single-hand air inflation and release. The patented 2-in-1 tube technology eliminates jumping dial during inflation while the non-stick screw-type valve delivers precise deflation control rate. The anti-slip inflation bulb is constructed of crack-resistant, non-sticking, high-density hypoallergenic latex-free PVC. Product ID MDF-848IC