In fact, as far as ECG machines are concerned, the basic functions of each manufacturer are similar to those of conventional ECG examinations. For the above friends said the failure rate, the return rate is a problem, but the ECG machine occurrence of such events can not be said to be more. In addition to look at is his technical indicators, the sampling rate is high and low, determines the waveform effect. If the sampling rate, filtering and other technical indicators, however, it is likely that the P wave, T wave, such as a relatively small wave, will be flooded, the clinical significance will be greatly discounted.
Don't be fooled by the salesman's words, the important thing is to see the various products with your own eyes, and see the effect of your own before making a judgment.