Thermon Blood Pressure monitor TP-104BP/USB is a compact and fully automatic blood pressure monitor which works on the oscillometric principle to measure your blood pressure and pulse rate without fuss. The device uses its advanced "IntelliSense" technology for comfortable and controlled inflation without the need of pressure pre-setting or re-inflation. Automatic Blood Pressure Monitor Easy, one-touch operation Hypertension indicator Body movement detection Memory for last reading Irregular heartbeat detection. 4 AA Batteries not required to operate the item.