A classic one handed/Blood Pressure Monitor for precise measurement with stethoskop. guarantees Sanaphon even those with cardiac arrhythmias precise measurements.- Sturdy and lightweight aluminium casing, corrosion resistant socket Hlaucha port at the right side of the manometer latex ball for inflating the cuff (TM) Precision Air Release Valve Fine Adjustable and wear-free - Microfilter protects air release valve and measuring system spoon with handle made of rust-proof steel specially hardened copper beryllium membrane, Virtually Alterungsfrei membrane Überdruckbelastbar up to 600 mm Hg Easy to read linear scale & # x2DC; 64 mm from 0 & # x20AC; 300 mm Hg Maximum error tolerance: +/-3 mm Hg in padded nylon zip case with personal blood pressure record card