You can remove your sensor by gently pulling on the sensor tail from the closest point to the top of the tail you can reach. Care should be taken when handling the sensor tail to prevent any nicks or cuts which may cause it to weaken. Once you have removed your sensor, thoroughly wash it, and dry it. If you notice a tear in the sensor tail, please stop using it, take a picture and send the picture to us here www.ovusense.com/uk/getsupport