A small magnetic sensor is mounted at the top of the door to be monitored. A lead from the sensor plugs into our Pager Transmitter. When the door is opened, a signal is sent to the Pager Receiver. Can be used to monitor a single door or for supported accommodation, multiple units can be set up to monitor multiple doors.
Note that a Pager Transmitter and Pager Receiver are also required, and purchased separately - see:
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