A sensor includes: an integrated circuit having a power supply lead, a ground lead and a signal lead; a power supply terminal connected to the power supply lead; a ground terminal connected to the ground lead; a first signal terminal connected to the signal lead; a second signal terminal connected to the first signal terminal; a filter member having one end connected to one of the terminals and another end connected to another one of the terminals; and a sealing body sealing the integrated circuit, the terminals and the filter member. A part of each terminal is exposed from the sealing body.