For 3 channel ecg machine, everyone has different special concerns about it, and what we do is to maximize the product requirements of each customer, so the quality of our 3 channel ecg machine has been well received by many customers and enjoyed a good reputation in many countries. Poweam Medical 3 channel ecg machine have characteristic design & practical performance & competitive price, for more information on the 3 channel ecg machine, please feel free to contact us.