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
124  33.5%
Once a year
100  27%
Once every three months
65  17.6%
Once a month
64  17.3%
Once every two years
12  3.2%

Number of Voters  :  370
First Vote  :  Monday, 09 October 2006 08:01
Last Vote  :  Monday, 19 November 2018 07:21
UA-61032071-1