| 摘要 |
A detection device comprises a case formed by at least a first and second part able to move with respect to one another between a first and second operating position. Said device comprises an electric contact comprising at least two electric states, closed or open, each electric state being associated with one of the operating positions of the first and second parts, and securing means designed to fix said case onto an external support. Said securing means comprise locking means designed to perform holding of the two parts of the case in one of the two operating positions, fixing of the case onto the support by the securing means rendering the locking means inoperative.
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