An electrochemical sensing device is provided. The electrochemical sensing device includes a main body having a connecting slot, a testing holder having a detachable connection to the connecting slot and having a storage component, and an electrochemical sensing strip detachably combined with the testing...http://www.google.co.uk/patents/US20050115831?utm_source=gb-gplus-sharePatent US20050115831 - Eletrochemical sensing device