ProBP 2000 Digital Blood Pressure Device, Size 11, Adult, FlexiPort, Reusable, (4) AA Batteries (US Only) Features Blood pressure readings are captured on inflation in about 20 seconds Compatible with Welch Allyn FlexiPort Reusable Blood Pressure Cuffs, from child size 9 up to thigh size 13 (15 - 55 cm range) Meets AAMI standards for blood pressure accuracy Device ships with one adult size 11 FlexiPort Reusable Blood Pressure cuff Non-Latex