Timestrip® elapsed time indicator is a small nonreversible reminder. Indicator can be used to supplement a curtain. Indicator is applied to each individual curtain and allow one to distinguish how long it has been since last curtain replacement.

Once activated by squeezing the activation blister, it immediately begins to show the amount of time that has passed by filling the window with colour. 

When the Timestrip® indicator has completely filled with colour, the set amount of months have passed, reminding the user to take action.

More info: www.timestrip.com