Baum Roll-By Mobile Aneroid, #1150FEATURES: 300 mmHg clinical sphygmomanometer for mobile use. Meets the American National Standard ANSI AAMI SP 10 for accuracy and performance (1% + 3 mmHg). Available with Latex or Non Latex components. Unique, low reflection, high contrast scale and red pointer to increase visibility and reduce parallax error. Diecast Aluminum 5 wheel base (20 dia.) with 2 hooded casters and 2 lb. cast iron weight for increased stability. manometer housing is