How often do you change the batteries in your smoke detector?

How often do you change the batteries in your smoke detector?
Twice a year
123  33.3%
Once a year
100  27.1%
Once every three months
65  17.6%
Once a month
64  17.3%
Once every two years
12  3.3%

Number of Voters  :  369
First Vote  :  Monday, 09 October 2006 08:01
Last Vote  :  Tuesday, 13 November 2018 17:13
UA-61032071-1