Etherbox / MessPC: Sensor Switch Contact
This check monitors the state of the etherbox switch contact sensor
The check reports a CRIT only when the current state differs from the
expected_state ("open", "closed") specified by the parameters.
Without parameters the check is always OK.
The port number of the sensor followed by the sensor type
Example: "2.4" - A switch contact sensor(type 4) on port 2
One service is created for each switch contact sensor.