... environmental protection,no sound generated: it is entirely led lights up, one led on each dot, the light ... : 23h:59m:59s. 5, Alarm: With 6 alarm zones, for example, you want the alarm rings at: 1: 00, 2 ... 00, 4: 10, 5: 20, 10: 15, then alarm will rings automatically at this time zones each day. And ... the time interval between each alarming within a alarm zone group as you like from 1minutes to 60minutes ...