Spool Ethanol Analyzer is designed to connect to the Spool Wireless Ethanol Sensor Kit and help determine the in-tank ethanol content and fuel temperature. It incorporates the latest Low energy Bluetooth protocols and provides fast and reliable ethanol content information right on your smartphone.
The App also includes a mixing ratio calculator and it can be used even if you don't have access to the Spool Wireless Ethanol Sensor Kit.
Links:
Apple Appstore-
https://itunes.apple.com/us/app/spool-ethanol-analyzer/id1418992096?ls=1&mt=8
Google Play-
https://play.google.com/store/apps/details?id=us.spoolperformance.app.spool_ui
$132.00