Congratulations on your purchase of your Blue Maestro Bluetooth sensor and data logger.  We are here to help you get set-up as quickly and easy as possible.  The first thing you will need to do is to download the relevant app on your iOS or Android smartphone.  We have written a series of articles on how to do this and what the steps are when you have done this, including troubleshootings hints and tips.  You can find these in the Apps Folder of this Support and Resources section.