The Upper Arm Blood Pressure Monitor Bu 510 Is Ideal For Fast And Accurate Blood Pressure Measurements On The Upper Arm And Is A Reliable Aid For Regular Blood Pressure Monitoring. The Certified Medical Product Possesses 90 Memory Slots For Two Users Each. Its Clear, Easy-To-Read Display And Extra Large Upper Arm Cuff For Arm Circumferences From 22 To 36 Cm Make It Simple To Use.