Looks like new and good price for it, contact us With FlowScreen, you have a choice of flow measurement technology from either standard pneumotach or our new, VIAflow ultrasonic flow sensor that does not require calibration. Large, high-resolution color display makes data viewing during collection easy. Database capacity of more than 1,000 patient records lets you do more testing before having to download and archive your data, which is also easy with FlowScreen. Animation programs will help young or cognitively impaired patients better perform the maneuvers. Expand your compact system to include Bronchial challenge testing. Return Policy Items are sold as-is with no returns or refunds available unless explicitly stated.