This set of Fake Security Beams imitates the photoelectric sensors that are used in most high end security systems today. Criminals know that these sensors are placed across from each other to cause an invisible beam to pass between them and if that beam is broken, the alarm system is triggered. The criminal will think that you have a high- end security system installed and go in search of an easier target. These fake sensors have red flashing lights on the front to draw the attention of anyone who steps foot on your property.Each unit requires 2 AA batteries (4 total). Wall and pole mounting hardware is included for easy installation. Covered under a 90 day warranty. The price of this item has been drastically reduced due to the fact that there are limited quantities available. Once our remaining stock is depleted, this item will be discontinued.