The Asma-1 is a simple, home use, electronic respiratory monitor that measures PEF and FEV1. This device can be synced with a smart phone or tablet for ePRO data collection. The Asma-1 offers extreme accuracy and simplifies records of these measurements by eliminating the need for paper cards. Having the ability to personalize your PEF and FEV1 zones helps tailor this device specific to the patient. This can be used with SafeTway mouth pieces and is easy to clean.