Time for some new smoke alarms? Head over to WalMart and pick up the Kidde Fire Sentry Micro Profile 3 Year Smoke Alarm for only $2.22! (Reg $6.66)
This smoke alarm features a low profile and discreet design with state of the art protection technology from Fire Sentry, and it is powered by a 9V battery that keeps working, even when power to your home is interrupted. This white smoke alarm has a low-battery indicator so that you know when it’s time to replace its batteries before it ceases to function.