The Baum Pocket Aneroid sphygmomanometer meets the American National Standard ANSI/AAMI SP-10 for accuracy and performance. This 300 mmHg clinical blood pressure unit is ideal for portable use. This unit offers precision low friction movement with twin pre-seasoned phosphor-bronze diaphragm capsules. It has a unique high contrast scale and red pointer for ease of viewing. The Baum Pocket Aneroid is latex free making it ideal for any school setting. The child cuff fits an arm circumference of 18-26cm.