50 felt pen ink ultraviolet invisible ultraviolet lamp with pink agenda

This pen with invisible ink is revealed in the presence of ultraviolet light .
You will keep all your secrets Thus stories :
A blank page will be filled with confidential information without anyone suspecting .
To read the writings made ??, use a torch to ultraviolet
or ultraviolet LED integrated into the pen with invisible ink.
This pen allows invisible marking equipment.
Very useful to identify stolen goods .
The applications are many and varied :
Warranty date , serial number , owner name , etc.

We recommend that you use (ref. DFPBI ) (portable lamp and small ) or any other counterfeit detector (ref. DFB) (ref. DFBP ) (ref. DFBPIG ) . The ink remains invisible for several years without ultraviolet lamp . The invisible ink becomes visible using an ultraviolet lamp . Note: We do not sell yet invisible ink, but we sell the following products: secret diary with a pen uv invisible ink spy security information (ref. VDLIIP ) confidential agenda.