An Entry Alert is normally sounded, when a new customer opens your retail business door. This type of system is activated by a magnetic contact door sensor placed on the door and the other half on the door frame. These Entry door sensor contact alerts can sound a device right at the door (local alert) or at a different location than the door (remote alert). The Remote Entry Alert devices can we wireless or wired.
http://ezcyberquest.com/wp-content/uploads/2017/06/Entry-alert.png 301 280 condormarketing http://ezcyberquest.com/wp-content/uploads/2017/03/security-warning-device.png condormarketing2017-06-19 08:00:122017-06-06 13:39:30Magnetic Door Sensor Systems