Contec SC21 Budget Dual Head Doctors Stethoscope Pawper Tape with Flipper Card 9)Single or full-lead ECG in

9)Single or full-lead ECG in any time bucket can be reviewed by the fast review analysis function

and displays measured results with a big font

Carry case included

Inexpensive

Power:AA Batteries*4:DC 6V(not include)

Contec SC21 Budget Dual Head Doctors Stethoscope Pawper Tape with Flipper Card 9)Single or full-lead ECG inIt is used to collect and amplify the sound inside body organs like heart, lung, arteries, vein, etc., which is applicable for use in hospital, clinic, examination institution, ambulance, home and camping rescue, etc. Main performance100 Hz ~ 500 Hz as the reference of the testing sound source: Outer diameter of auscultation head 35 mm, damping 30 dBOuter diameter of auscultation head > 35 mm, damping 16 dB500 Hz ~ 1000 Hz as the reference of the