Burglar Alarm System Warning! Signs & Decals Intruder Deterrence Kit (1) Yard Sign with Stake (2) Wall/Window Signs 8 Decals Yard Sign mounted on 36″ aluminum u-channel stake , with pre-cut edge & plastic safety cap. No assembly of sign required. The first layer of any good security system is the signage. Bring attention to your security system, whether you are using an alarm/video system or not. Place these decals/signs at strategic locations to enhance the effectiveness of your security deterrence system. We recommend an actual video/alarm system be installed, a good security system for any home or business would include, signage, lighting, secure locks and a monitored alarm system along with practicing good security habits.