Riester big ben aneroid wall sphygmomanometer

Features:
- Maximum precision for life.
- Large scale (Ø 147.2 mm or 145.5 mm) and excellent contrast for optimal reading; scale up to 300 mm Hg.
- Large basket at the back of the device for tubes and cuffs.
- Latex pear to inflate the cuff
- Wear-free air release valve, with fine regulation
- Microfilter to protect the air release valve and the measurement system
- Very resistant to aging membrane, specially hardened copper-beryllium, withstands pressures up to 600 mm Hg.
- Precision mechanism mounted on a special bridge to ensure absolute stability of the measurement system and the zero point.
- No zero point fixation.
- Maximum error tolerance: +/- 3 mm Hg.