The corresponding entries will appear in the event log.
The triggered sensor stays in the «Alarm» mode for two minutes, after it has generated and sent the alarm alert to the hub. New alarm alerts will not be sent, If the sensor is triggered again during this period. If you want to disable the «Alarm» mode manually for the triggered sensor, then you can disable the guard of the site and re-enable it, the security company can re-enable the guard remotely.