A device (120) comprising: a case (122); a
printed circuit board (125) arranged inside the housing (122); and an elastic seat (123) that covers a surface of the
printed circuit board (125) on one side of the
printed circuit board (125), wherein the housing (122) has the following a wall (122D, 122E) with an opening (122A) provided on one side and another opening (122C) provided on another side, which is different from the one side, wherein the wall (122D, 122E) extends between the one opening (122A) and the other opening (122C) in a direction which intersects with a direction in which one surface of the circuit board (125) extends, wherein the elastic seat (123) has a
flange (123B, 123C), and wherein the
flange (123B, 123C) touches the wall (122D, 122E) so that it is deflected at the wall (122D, 122E), wherein the elastic seat (123) has a first run (123D), wherein the first drain (123D) adjoins the
flange (123B, 123C), wherein the first drain (123D) is shaped such that it projects from one side of the wall (122D, 122E) to the other side, wherein the first drain (123D) is formed by
notching a part of the flange (123B, 123C), the device (120) further comprises: a lower cover (126) that blocks the other opening (122C), the lower cover (126) has a second drain (126C), wherein the second drain (126C) is designed to extend from one side of the lower cover (126) to another side of the lower cover (126), wherein the lower cover (126) is designed such that a part of the lower cover (126) corresponding to the first drain (123D) is notched.