Why should I buy the NavAlert when I can just use a license plate cover or spray?
NavAlert will warn you of any speed or red light camera ahead and it is 100% legal in all 50 states. Plate covers are not legal in some states and are easy for police to see. Sprays will only work if there is a flash and some newer cameras are now beating license plate sprays. NavAlert will also alert you to known speed trap areas and give you your current speed while telling you if you need to slow down when an alert is sounded.