During the initial years, PBI invested in research and development while establishing a corporate presence in the ECG marketplace through exhibiting at the American Heart and the American Cardiology conferences.  The initial product consisted of a separate card that was inserted into the PC with DOS based software running in the PC.  Through R&D, the product (QRSCard™/232) has evolved to an external hardware module about the size of a small cellular phone with communication to the PC via the serial port.  The system is a fully integrated Windows® 98/2000 product and Windows CE Handheld (hpc) and Palmtop (ppc) devices.

In addition to the current Resting ECG and Stress ECG the company is now developing software for signal averaged, high resolution ECG.  PBI's Resting, Stress and High Resolution ECG use the same QRSCard™/232 hardware components. 

     PBI owns all proprietary hardware design and has complete ownership to the source code for its software including its own automatic ECG measurement algorithms, automatic ECG interpretation algorithms and high resolution signal averaging ECG software.

     PBI sells its products through independent dealers on a worldwide basis.  In addition to the U.S. FDA clearance, the QRSCard™/232 product is approved in Japan, China, and has the current European CE mark.  The company has sold its products on an OEM basis to a number of companies including Ergoline (exercise bicycles) and Jaeger (pulmonary stress) in Europe, and for use with catheter laboratory products by EP Medical and by Cortet in the U.S.  PBI has licensed its technology to Intermedics for use with their new pacemaker programmer.  The company works closely with its OEM customers and in particular, has integrated its stress product very closely with the Jaeger GmbH and Sensor Medics Inc. pulmonary stress product (Oxycon™ and VMax™). QRSCard™/232 is currently used in more than 30 countries around the world. Other OEM distributors include Oxford Instrument Medical, UK and Advanced Biosensor, USA.