... interpretive 2.Simultaneous 12 leads medical portable six channel ECG HKECG0103A 1.Product specification Six channel with interpretiveBuild in rechargeable Li ... your choise:HKECG0101 HKECG0101AHKECG0102 HKECG0102AHKECG0103HKECG0104 medical portable six channel ECG HKECG0103A