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
126  33.8%
Once a year
100  26.8%
Once a month
65  17.4%
Once every three months
65  17.4%
Once every two years
12  3.2%

Number of Voters  :  373
First Vote  :  Monday, 09 October 2006 08:01
Last Vote  :  Saturday, 08 December 2018 12:33
UA-61032071-1