Digital 3/6 Channel ECG Name:ECG Features:^7'' TFT, touch screen, led backlight^ ... ^Sensitivity choice: 5,10,20mm/mV^Measurement parameters: HR, P-R interval, P-Duration, QRS Duration, Q-T interval, Q-Tc ... , P Axis, QRS Axis, T Axis, R(V5)+S(V1)^Product safety type: Class I, CF. Defibrillation ...