Certeza Aneroid  CR1002, Certeza sphygmomanometers have been proven by test results. Certeza shock-proof is a patented technology. Sphygmomanometers differ not only in precision, comparable to Mercury devices, but also from a nearly unlimited lifetime.  Further proof of its unparalleled quality is the diaphragm pressure-loading capacity of up to 600 mm Hg. Choose from our large product range with screw- or plug-in connections and a large variety of cuffs.