This object holds a separate restore (clear) threshold, deliberately offset from the trigger threshold, so a previously raised alarm only clears once the metric recovers past this value rather than the instant it dips back below the original trigger point. Admins set this hysteresis gap specifically to stop alarms from flapping repeatedly when a metric hovers right at the trigger boundary. For example, an alarm that triggers at a low optical reading of roughly -25 dBm might only be configured to clear once the level recovers to -23 dBm, so a signal bouncing around -25 dBm doesn't spam repeated alarm/clear events.