This read-only enumerated value reports the general status of the sensor unit on port 1, covering states like ok, error, configuration changed, reset, timeout, newly detected, or not available. It lets an admin see at a glance whether the unit simply needs operator confirmation after a change or detection event, versus a hard error or low supply voltage. For example, a value of 6 (detected) after swapping in a replacement sensor unit tells the admin to confirm the new hardware before it will report normally.