Welch Allyn Connex ProBP 3400 Series Professional Blood Pressure Monitors Small enough to fit in your hand, with the same accuracy as Welch Allyn industry-leading vital signs devices, the ProBP 3400 digital blood pressure device is a smart choice for clinicians in just about every medical setting. Features: SureBP NIBP technology enables fast, accurate 15-second readings USB-wired technology enables integration to select EHR/EMR systems Compatible with Welch Allyn cuff sizes from small child to thigh Lithium ion battery technology delivers up to 100 readings on a single charge Configurable to match your workflow and specific patient needs Meets AAMI Standards, awarded BHS A/A rating Obtains accurate readings, even in the presence of some motion or weak pulse.