Check the listing for details. GE MAC 5500 HD Resting Electrocardiogram System ECG Machine for Parts. Condition: For parts or not working. Listed at 149.99 USD. GE MAC 5500 HD Resting Electrocardiogram System ECG Machine for PartsClick here to see more other items - We have a team of kind and friendly resources readily available to address any common questions you may have.- The product is so as is with no return.About this itemThe GE MAC 5500 HD Resting ECG Analysis System is a fast and accurate device used for monitoring changes in patient's ECGs. The MAC 5500 HD takes advantage of Marquette's 12SL ECG Analysis Program. This ECG features simultaneous 12-lead and 15-lead ECG acquisition for adults and pediatrics. Features Display Type: 10.4" LCD.Frequency Range: -3 dB @ 0.01 to 150 Hz.Sampling Rate: 1,000 Samples (Analysis) and 4,000 Samples (Digital) per second per channel.Operating Temperature: 10 degrees C to 40 degrees C.Storage Temperature: -40 degrees C to 70 degrees C.Operating Humidity: 20% to 95% non-condensing.Storage Humidity: 15% to 95% non-condensing. Kindly take a moment to review our feedback located at the bottom of the eBay auction listing.