Abstract: A portable appliance intended to detect fluorescent particles excited in the visible spectrum for enabling the authentication of products. The appliance comprises: a light source (2) of excitation provided with at least one electroluminescent diode or a laser for producing a focussed light beam: a box (1) for respectively accommodating the light source (2) and means of electrical supply for supplying the light source (2); and compact optical means, whether integrated or not in the box (1), enabling a user to instantaneously visualise the fluorescence of the marked elements excited by means of the light source (2). The appliance is used as a ground detector for authenticating and tracing products comprising a secret marking by fluorescent particles.

Abstract: The invention concerns a portable appliance intended to detect fluorescent particles excited in the visible spectrum for enabling the authentication of products. The appliance comprises: a light source (2) of excitation provided with at least one electroluminescent diode or a laser for producing a focussed light beam: a box (1) for respectively accommodating the light source (2) and means of electrical supply for supplying the light source (2); and compact optical means, whether integrated or not in the box (1), enabling a user to instantaneously visualise the fluorescence of the marked elements excited by means of the light source (2). The appliance is used as a ground detector for authenticating and tracing products comprising a secret marking by fluorescent particles.

Abstract: A tamper proof closure (1) has a plurality of magnetic strips (7) attached thereto which are arranged to be broken if the closure is opened. The broken magnetic strips have a different magnetic characteristic as compared to when they are intact and this can be sensed with a Hall effect or other sensor. The tamper proof closure enables the condition of article closures such as the screw caps of liquor bottles to be remotely monitored.