Especially when more than one bottle of beer at a time is taken out of the fridge, people can forget to put the scores on the list. This problem has lead to unacceptable high beer loss for our beer list. The idea is that beer takers are reminded to put a score on the list. This happens like this. When this is not done within half a minute, a very annoying buzzer starts to buzz.
Some people however like to first put a score on the list and then take the beer out of the fridge.
Because of this timer people have half a minute to take the beer after putting a score on the list without activating the first timer. To make sure the system is always working fine the first timer is also set if the pencil is taken out for non-beer purposes. Also the alarm stops immediately when the pencil is taken out while the alarm is going off. To be user friendly a light is added to shine on the list when the pencil is not in it's socket whenever it is too dark to see the list properly. This is our beer scoring list.