The In-Check Dial is a low-range inspiratory flow meter (15 to 120 L/min) that assists the health care professional to assess inhaler technique and teach optimal inhaler use. It can simulate the different "internal resistance" for commonly used inhaler devices, enabling measurement of the speed of inhalation for each device chosen.
Readings of inspiratory flow rate obtained enable the healthcare professional to encourage patients to modify their inspiratory technique (by inhaling with more, or less effort), in order to achieve "optimum inspiratory flow".
Resistance: The patient feels the same resistance as the real inhaler.
Flow: An accurate measurement of the speed of inhalation.
These two principles aid in inhaler training and assessment.
Accuracy+/- 10% or 10 L/min (whichever is greater) and repeatability of +/- 5 L/min.