The A&D Medical Blood Pressure Monitor UA-651L-AC is a digital blood pressure testing device designed for use on the upper arm with a circumference ranging from 12.2" to 17.7". This model features a white color and operates on either a power adapter or batteries, making it convenient for both home and on-the-go use. The set includes the monitor itself and also includes an AC adapter for easy connectivity. Ideal for monitoring and testing blood pressure levels for optimal health and well-being.