The SpiroScout is a complete lung function laboratory based on GANSHORN`s unique ultrasound measurement principle. It enables precise determination of all spirometric parameters.

As the first of its kind, the SpiroScout simultaneously measures flow and gas density, providing all necessary information about the volume and gas exchange from one single measurement.

Ultrasound Spirometry is a quick measurement method for direct and precise flow determination.

This ultrasound transit-time flow measurement method (TrueFlow) works with a high resolution of 1,000 measurement points per second, so that no substitute parameters for flow (e.g. differential pressure, temperature or turbine) are necessary.

Within the breathing tube ScoutTube, two diagonally opposing piezo elements alternately send and receive ultrasound waves. Without any flow, the ultrasound waves’ transit time is the same in both directions. Flow moves the air inside the tube, which will accelerate the waves in one direction and slow them down in the other. The higher the difference between go and return, the higher the flow. All other factors (gas properties, humidity, temperature) are the same for both directions and cancel each other out.