With built-in DK technology, the stunningly precise arm blood pressure monitor has become a very unique device on the market. An innovative sensor is embedded into the cuff, which actually senses the heart beat like the human ear but even better than the human ear. The level of accuracy is increased with the classic oscillometric method, also embedded in the cuff. There is a large display to enable quick reading and can be activated with one quick touch. The device works on four AA alkaline batteries but can be operated through the AC adapter too. Connect the device to the computer, and view the results in that too. ?