Warning device messages. It is to draw the attention of a third party to MESSAGE WRITTEN IN A NOTE not go unnoticed; FOR, WHAT IS DEFINED because it has a housing (5) in which is housed an oscillator (2) which relates to feeding means (3), actuation means (1) and indicating means (4) , so that when acted upon activation MEDIA ALIMENTA the oscillator and indicator means are activated. MEDIA MAY BE INDICATION optical or acoustic. The activation means may be electronic or electromechanical. The housing includes means for attachment to a surface through which empowers ALSO NOTE retention. NOTE ALSO BE RETAINED BY tweezers.
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