We will not be sending extra adhesives along with orders. Each sensor comes with one.
While we can't guarantee the adhesive's fidelity after being removed from it's initial location, it may be able to be reused. It's important though, that if it is reused, the copper colored disc on the bottom of the device is still in flush contact with the new surface.
If you need an extra adhesive or 2 we would be happy to send those to you free of charge. Please email us at firstname.lastname@example.org to make a request.