Now you can deter robbery, theft, vandalism, etc. without the high cost of a real security camera. With the Large 8 inch Dummy Dome Camera even the most sophisticated criminals will think the premises are guarded by a high-tech surveillance system and go in search of an easier target. Our dummy cameras look real because they are real- real shells that is. They are actual surveillance camera shells that lack the expensive electronics inside while still providing the deterrent of a security camera at a fraction of the cost! And with a dome "camera", the criminal does not know which direction the "camera" is pointing. Rather than having four or five regular cameras to secure an area, one dome camera can give the illusion that an entire area is under surveillance. This unit is ideal for a retail store, factory, business, school, hotel or warehouse. The weatherproof outdoor housing also allows it to be used in outside locations such as parking lots, car dealerships, parks, college campuses, etc. Also, it can be used in junction with a real camera. A red blinking LED light is included (requires 2 AA batteries- not included). This is an optional feature; just don't install the batteries. The dome is 8 inches in diameter.