The Trac10167 Door Magnetic BLE Sensor , integrated with data logging and real-time status alerts, is a BLE 4.2 based wireless Beacon to detects when doors open or close for powerful visibility. With precise sensors and an easy-to-install design, the door monitor provide powerful visibility and improved security to both roll-up and swing (i.e. hinge) doors without any complicated wiring or cables. It also delivers enhanced visibility of trailer and container operations and improved cargo security , which enables fleet operators to know if the cargo area is being accessed as scheduled and react quickly to unexpected openings.