Features: Easy installation and durable. A perfect aftermarket replacement for you. This sticker is designed to be applied to the inside of a window to be read from the outside. This prevents the sticker from being tampered with while the premises is unattended. Also available as an externally applied sticker. Warning - CCTV Video surveillance in 24 hour operation. CCTV Sticker made of fine polymeric vinyl with UV resistant lamination film.