Without Alarm+ activated Luda.FenceAlarm communicates once every 24 h regardless of voltage changes.

With Alarm+ Luda.Fence measures the voltage every minute if it is charged >95 % or every 10 minutes if the battery level is <95 %. However, if there is no change in voltage (according to the set alarms) Luda.Fence communicates every 4th hour. 

Example: if a drop in voltage occurs and it is continuously powered by 230V it will communicate the change in roughly a minute.