Contec SC21 Budget Dual Head Doctors Stethoscope Laryngoscope Set 2) Low power consumption(two batteries)

2) Low power consumption(two batteries)

Battery Life: Approx

Lightest-weight Welch Allyn ophthalmoscope

Power Consumption: 90W

Mass Median Aerodynamic Diameter (MMAD) according to EN- 13544-1 2

Contec SC21 Budget Dual Head Doctors Stethoscope Laryngoscope Set 2) Low power consumption(two batteries)It 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