Vales and Hills Biomedical Tech. Ltd. (V&H), located on BDA International Park, BEIJING, has been one of the leading developers of PC based ECG technology for years. V&H keeps giving great resources to approach the edge that comes with the idea of sophisticated simplicity in products design and the discipline of management in quality control. V&H is mostly engaged in PC-ECG, ECG Workstation, ECG Stress Test, Digital EEG Series and Ambulatory Blood Pressure Monitor.