ECG Cardiart systems are used for monitoring of electrical activities of heart for specific duration. These error free clinical apparatus are well known for their easy to comprehend interpreting style, automatic operation, 12 channels based function and large internal storage space where 800 ECG results can be recorded. Li-ion rechargeable/NiMH battery of these systems can conduct 300 ECG tests without any interruption. 24-bit A/D converter of these apparatus can maintain 16000 Hz sampling frequency. Being energy efficient, these ECG Cardiart systems consume only 230 v voltage to function. Maximum operating temperature that these systems can endure is 40 degree C.