... to use CE qpproved Good aft Features: 12-lead simultaneous standard resting ECG 7-inch TFT, touch screen, ... etc Built-in lithium rechargeable battery, wide thermal printing system USB and LAN socket Memory: Built-in memory ... , P-Duration, QRS Duration, Q-T interval, Q-Tc,P Axis, QRS Axis, T Axis, R(V5), ... (WxLxH)Net weight2.5kg Touch Screen Digital 6-channel Electrocardiograph with CE and ISO certificate