Notion sensors are powered by replaceable lithium coin cell batteries (CR2477N.) We've built them to be as passive as possible. In our internal testing we have determined that sensors can last up to three months with a single battery and the battery is easily replaceable. Click here for more information on replacing the battery. The Notion Bridge is powered with a standard 120V Wall outlet.
Questions? Feel free to reach out to our support team. Click here to submit a ticket, or we're available directly at firstname.lastname@example.org or by phone at (877)668-4660.