Patent ID: 8734184

Claim:
A sensor or detector device, comprising: a box in the form of a tubular hollow body with a first longitudinal end that forms an active surface, and a second end, opposite to the first end, with an opening, through which a connecting cable passes and that is sealed by a connected plug; a card or an analogous substrate, carrying electronic components of said sensor or detector and mounted in said box, coated in an insulating filler material present in said box and filling approximately the entire remaining inside volume of said box; and a mechanical means ( 8 ) for positioning and wedging the card ( 6 ) in the box ( 2 ), said mechanical means ( 8 ) being entirely integrated in the plug ( 5 ) and comprising at least one portion of a groove or slot that can accommodate by engagement one end ( 6 ′″) of said card ( 6 ) to hold said card wedged, wherein the at least one portion of a groove or slot is made in the plug ( 5 ), at least partially bordered by a projecting formation ( 10 ) that extends an interlocked longitudinal portion ( 5 ′) of said plug ( 5 ), said groove or slot portion being able to accommodate, to be held wedged, the end of the card ( 6 ) that is located close to the second end ( 3 ′) of the box ( 2 ), and wherein the projecting formation ( 10 ), extended from the interlocked portion ( 5 ′), has an end configured to come into immediate proximity or into contact with at least one light source ( 6 ″) that is carried by the card ( 6 ), at least a part of the plug ( 5 ) with the projecting formation ( 10 ) being produced from a material that can transmit light.