Riester Ri-san Palm Style Aneroid Sphygmomanometer. German high quality, modern, attractive designed aneroid sphygmomanometer, with centrally positioned air release valve. Available in colour - Grey. With multi configurations of different cuffs available to meet your needs. Handheld, portable, palm sized, aneroid Sphygmomanometer with centrally positioned air release valve that enables left or right hand operation. The precise fingertip control is ideal for self-measurement with integrated stethoscope available. Validated by the British and Irish Hypertension Society. Features and benefits for both the clinician and patient: Available in a choice of four different colours - slate grey, blue, saffron and green Suitable for left or right hand operation with trigger-style air release valve Sturdy ABS plastic enclosure Precision, virtually wear-free air release valve with precise adjustment Integrated stethoscope version available Maximum error tolerance of ±3 mmHg Microfilter protects air release valve and measuring system Easily legible display, Ø 64 mm (2.5 in), from 0 to 300 mmHg Lifetime precision* Comprehensive selection of different sizes and versions of single tube cuffs Vinyl zipper case