Kapacitor: change synchronization time

Hi everyone I would like to trigger deadman alarms when I no longer receive measurements for a particular sensor. My code is as follows:

var data = stream

var trigger = data
    |deadman(threshold, period)

The problem is that the checks are always done at the perfect time (for example if I set 60m the checks are made at 13:00, 14:00 and so on) but I would like the timer to start from the time of the last data point. If I get a measurement at 13:24 the alarm should go off at 14:24 (currently it will only go off at 15:00). How can I solve this problem? I tried to insert a window () with no success.

Thanks in advance