Pneumotachograph flow technology
This sensor measures pressure drops across a resistive element to determine flow, providing the high-precision measurements required for hospital-grade clinical diagnostics.
Operational performance trade-offs
These sensors offer excellent low-flow sensitivity but require frequent recalibration and heating to manage condensation, effectively increasing total long-term operational costs.
Turbine digital sensors
Rotating blades translate airflow into digital signals, offering a durable and highly portable solution for primary care and screening environments.
Digital sensor trade-offs
Mechanical turbines are humidity-resistant and cost-effective for screening, yet they exhibit physical inertia that can affect measurement accuracy at low flow rates.
Ultrasound transit-time technology
High-frequency sound waves measure gas velocity directly, representing the current technological peak for maintenance-free and high-precision hospital respiratory testing equipment.
Ultrasound technological trade-offs
This technology provides maintenance-free operation and high precision across all flows, though the initial purchase price is significantly higher than mechanical alternatives.