Not at all! You purchase new subscriptions as you need them. You can track the start and expiry dates of each subscription in the BrightSentinel Cloud and phone app.
If you are transitioning from the T+Button to the new AnnoLog logger, you'll likely have many questions about the differences between these devices. Here is a table that hopefully answers all your questions. Otherwise, please don't hesitate to ...
Each subscription lasts 12 months from the date you start using the calibrated logger. Prior to expiry of your annual subscription, you renew your subscription. We send you a new logger freshly calibrated, with its Calibration Certificate, and you ...