Smarter Security's Door Detective® Plus is the most accurate and cost-effective solution to extend security to interior areas where intruders could enter unnoticed without the hassle to staff and end users. Powered by a dedicated high-speed onboard micro-controller with proven optical systems, the Door Detective easily integrates with your access control and building management systems to monitor the passage of people and objects through your door once it's opened. It's an ideal solution for laboratories, distribution centers, fitness centers, office buildings (data centers, records storage, and other restricted areas), and any areas that store high-value items.