... ECG 1.Three channel with interpretive 2.Simultaneous 12 leads HKECG0103 portable three channel ECG 1,Product specificationThree channel with interpretiveBuild ... .0A/250V ยข5x20mm HKECG0101 HKECG0101AHKECG0102 HKECG0102AHKECG0103AHKECG0104 portable three channel ECG HKECG0103