ZOLL Medical Corporation. The Group's principal activities are to design, manufacture and market integrated line of proprietary, non-invasive cardiac resuscitation devices, external defibrillators, pacemakers, disposable electrodes and accessories. These are used for the emergency resuscitation of cardiac arrest victims. The Group also designs and markets a software, which automates the collection and management of both clinical and non-clinical data for emergency medical service providers. The Group has introduced a new M series model, which is designed for critical care transport. The Group also provides training, installation, consulting and maintenance product support services. The Group operates in the United States, the United Kingdom, Canada, Germany, France, Australia and the Netherlands.