by Hawelka Publishing
Our laminated medical cards provide the most important information on specific topics in a clear and concise manner. These practical, sturdy, easy-to-read reference cards are a must for the medical professional or interested lay person. The ECG Ruler Deluxe card includes all the information provided on the ECG Ruler Professional, as well as an ECG explanation, a graphical representation of precordial leads (Wilson and Einthoven leads) and special leads V7-V9 with electrode placement. Size: 7.9" X 3.9"