Available in: Australia |
Unavailable in: France, China |
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Two diagonally opposed ultrasound transducers alternately send and receive ultrasonic waves in order to sense flow/volume. Without any air flow inside the breathing insert, the transit time of the ultrasound waves is the same in both directions. Any air flow inside the insert will accelerate the waves in one direction and slow them down in the other. The higher air flow, the higher the difference between the ultrasonic waves thus a differentiation in flow/volume. All other factors (gas properties, humidity, temperature) are the same for both directions and cancel each other out. |
Suitable for disposable mouthpieces and/or bacterial filters (a permanent breathing insert with bacterial filter connection is available for SpiroScout).
Designed without any moving parts, the optional breathing insert can be removed quickly and easily for disinfection.