1.With LCD 2.CE,FDA approved 3.Independent pacemaker detection 4.24/48/72 hours recording 5 ... weigt 3 channel Holter recorder 1. Removable SD memory card, fast data transfer and quick turnaround2. High resolution and sample rate, large ... wire, pack CD of software, encrypt lock, user’s manual 3 channel Mini Ambulatory ECG System, Holter ECG,FDA approved 3 channel Portable Ambulatory ECG System, Holter ...