Practical timer thanks to the 10-keys

I use this mostly as a timer countdown clock in the kitchen and in the workplace for years now and am very happy with it:

It is thanks to Decimal adjust very quickly and easily.

Instead of the depicted 7:66 you can of course just as well set 8:06. This works both: The alarm is sounding in both cases by exactly 8 minutes 6 seconds equal to 7 minutes 66 seconds.