Baum Pocket Aneroid w Adult Cuff Cane Accessories Digital LCD Wrist Blood Pressure 149 Digital LCD Wrist Blood Pressure Monitor Best BP Device For The Home One inch traditional bell (pediatric) and 3 4 inch bell (infant) combined with a patented floating diaphragm * Stainless steel chestpiece * Excellent acoustic seal and comfortable fit with patented 3M⁄ Littmann Snap Tight soft sealing eartips * Comfortably angled anatomically correct headset * Single lumen tubing is available in attractive colors * Three year warranty The Baum Pocket Aneroid is a 300 mmHg portable instrument * It's built to agree with our master instruments which are traceable to the United States National Institute of Standards and Technology * It complies with ANSI AAMI SP 9 for accuracy and performance (1% full scale + 3 mmHg) * The unique high contrast scale and red pointer increase visibility and reduce parallax error * They are manufactured with a precision low friction movement and twin pre seasoned phosphor bronze diaphragm capsules *