SYSTEM FOR INDICATING THE OPENING OF A HOUSING

摘要

The invention relates to a system indicating fraudulous opening of a cover which is mounted on a housing and which closes said housing by means of a pin (1), said pin (1) moving between a first position wherein the cover can be freely disengaged from the housing and a second position wherein it locks the cover onto the housing. The invention is characterized in that it comprises a part forming a marker (22) which can be displaced without a return and means (10), which under the combined effect of placing the cover on the housing and removing it therefrom and displacement of the pin wherein it is placed in a locked position or placed in a first position from a locked position, results in incrementation of displacement of the part forming a marker.