Door sensors serve to create safe homes and offices by warning against intrusion at access points that get opened often. They can work equally well with doors, windows, and cabinets.
A door-held-open alarm with a pleasant chime can warn a receptionist that a visitor has just entered the building, leaving enough room for attending other duties. When an intruder tries to forcefully break through an office door that he or she is not authorized to use, the monitoring system will let the controller know. Door-left-open alarms enable setting longer delivery times for goods and reducing them when the delivery is complete. They guard against one of the most common security intrusion events - piggybacking or tailgating.
Door sensor alarms are effective burglary protectors. At the moment a door is opened by a burglary attempt, the sensors can activate a flashlight, a loud siren, and a phone call, or any combination of the above. The phone call system can be connected to the owner’s phone, to a private security contractor, or to a law enforcement agency.