What is the difference between a shielded and unshielded proximity sensor?
There are two major differences between a shielded and an unshielded proximity sensor. With a shielded sensor, only the face of the sensor is exposed and can be mounted flush with the sensing object. In many applications flush mounting is a requirement. With an unshielded sensor, the face and a small portion of the sides are exposed. This allows detection of objects from the side as well as the front, but does not allow mounting flush with the object as the sensor would always be activated. Unshielded proximity sensors allow for greater sensing distances.
