TruZone Peak Flow Meter measures peak expiratory flows easily and accurately for effective asthma management. Designed for use with children or adults, its logarithmic scale easily measures low flow for pediatric use and normal flow for adult use.

Measures the force of air expelled from the lungs. Gives early warning of airway deterioration. Portable design allows use anywhere! Features a fold-down handle and red, yellow and green sliders for measuring your peak flow zone. Reusable and intended for pediatric or adult single patient use.