Model: ECG-11a/b/c  
Single Channel 12 leads

Model: ECG-11a/b/c
Auto Lead Selectable AC/DC power supply ECG Recorde

Model: ECG-11d  
Single Channel 12 leads
Auto Lead Selectable AC/DC power supply ECG Recorde

Model: ECG-11d  Single Channel 12 leads
Auto Lead Selectable AC/DC power supply ECG Recorde

Model: ECG-32A   Digital Three Channel ECG Recorder

Model: ECG-1206  
Six Channel Interpretive Electrocardiograph

Model: ECG-1212  
Twelve Channel Interpretive Electrocardiograph