Technical specification 1. ECG- User selectable: Full lead, I,II,III, aVR, aVL, V1-6 Gain selection- x1, x2, x4, x0.5 Heart rate range- Adult: 15-300bpm / Newborn / Child 15-350 bpm Accuracy- +_ 1% or +_ bpm, which is greater Calibration Signal: 1mV (mV p-p), Accuracy : +_5% S-T detection: 2.0mV-+2.0mV Alarm: audible and visual alarm