Yes, home security signs are able to deter intrusions in Tampa
Numerous studies indicate that security signs work when attempting to deter an intrusion. The reasoning is that the prowler will discover the sign and instantly determine that your residence isn't worth the hassle. After all, why worry about surveillance systems and sensors when a thief can move onto an unprotected house in another neighborhood?
However, the same reports show that a visible display ranks fairly low as a intrusion impediment. A well-placed sign mostly dissuades novices, but veteran thieves might want to see the extent of security that is truly protecting your home before looking the other way. Other equipment, like cameras, have greater success at thwarting prospective invaders.