The wall aneroid from W.A. Baum is built to agree with our master instruments, which are traceable to the United States National Institute of Standards and Technology. It complies with AAMI SP-9 for accuracy and performance (1% full scale ? 3 mm Hg). Its unique high contrast scale and red pointer increase visibility and reduce parallax error.
The manometer is manufactured with a metal mounting bracket, high impact ABS plastic manometer housing, precision low-friction movement and twin pre-seasoned phosphor-bronze diaphragm capsules. One adult-calibrated V-Lok latex cuff and basket.
Guarantee: Every Baum wall aneroid instrument is guaranteed against defects in workmanship and material for a period of one year from date of purchase.