Having developed medical instruments for 18 years, ArguScan distributes modular systems reflecting the highest needs to arrhythmia analysis. Careful technological design of our instruments is being carried out by an interdisciplinary team. Our software has been developed by considering sophisticated and differentiated user demand. We try to meet the requirements from daily ECG Holter to wide range arrhythmia researches. Bioinformatic technology enables us to participate in the project "ArguScan Arrhythmia Database". Research using statistical methods needs an access to an increasing database. Our cardiometric system enables unique user-friendly programming of an arrhythmia analysator. Experiences due to permanent scientific cooperation are regularly integrated into our products. Accordingly, arrhythmia centre using our systems are promptly able to join to the main stream of international research.