Revolutionary design and proprietary programming provide automatic inflation and error detection. Customized inflation levels for each individual patient. Color gauge simplifies detection. Provides quick digital readings of systolic and diastolic pressure as well as the pulse rate. Easy-to-use one-push button design. Stores the 90 most recent measurements. Large digital readout. Batteries included. Sensor Placement: Upper Arm; Size Group: Small Adult Cuff Fits Arms 22 cm to 30 cm; Power Source(s): 4 AA Batteries.