Visit: http://bonsale.info/B0040BIFLG<br /><br />ABPM-50 ambulatory blood pressure monitor <br /><br />ABPM 50 is a non-invasive, silent, compact, lightweight and reliable <br /><br />blood presure monitor for ambulatory application. 2 AA alkaline batteries <br /><br />can sustain more than 600 measurements in a period of 48 hours.