Skip to main content
. 2018 Jun 4;6(6):e133. doi: 10.2196/mhealth.7362

Figure 1.

Figure 1

Propeller Health sensor device, smartphone app, and hub base station. The Propeller sensor attaches directly to the metered dose inhaler and objectively captures the date, time, and frequency of medication use. The sensor transmits these data wirelessly via Bluetooth to a paired smartphone, where a mobile app displays the information for the user. For participants without a smartphone, a wireless hub transmits the data, which are accessible through a Web-based dashboard.