290 Series Door Monitor
Available from George Risk Industries Inc
The 290 series door monitor from GRI provides access control and perimeter security by monitoring access points leading to or from a controlled area and prevents doors from being accidentally left open or deliberately propped open. The 290 series door monitors are stand-alone alarm systems that can be mounted either locally or remotely to monitor access doors using a simple closed loop magnetic reed switch. It is an ideal solution for single door exits at the end of long hallways or isolated doorways in low-traffic areas.