GE MAC 3500 ECG Machine Good working condition Without battery FEATURES: The GE MAC 3500 is a resting electrocardiograph system. The MAC 3500 offers users the test technology on a 12-lead ECG analysis system. The GE 3500 is one of the most user-friendly electrocardiographs available, allowing the users to focus less on operating the system and more on the patient. The system offers a high-quality color display for reading ECG waveforms and 12L with gender-specific interpretation, making it easier to detect AMI (Acute Myocardial infarction) in women. The easy-to-read color screen displays 12 leads at a time. Marquette 12SL ECG simultaneous 12-lead ECG analysis program for adults and pediatrics. 12SL with Gender-Specific interpretation makes detecting AMI in women easier. Marquette Hook-up Advisor signal quality analysis program reduces poor waveform quality during ECG recording.