Specification:

Channel: 3 digital recording channels
Sample rate: 128~1024Hz
Resolution: 8, 10, 12 or 16 bit sampling
Pacemaker sample rate: 10000Hz
Frequency response: 0.05-60Hz
Recording time: 24-72 hours, full disclosure, no data compression, 3-channel ECG
Storage: SD flash card (2GB)
LCD display: ECG waveform and lead number
Dimension: 68mmx53mmx16mm
Weight: 42 grams (battery not included)
Lead: 5 wire patient cable (any 3 leads in V1~V6)
Power: 1 AAA size battery
Data transfer: SD card reader