very short intervals

[justinl]

I apologize for the noob question, but are there controllers capable of having 5 second long intervals? I need a controller/timer that will turn on a fan for 5 seconds, then keep it off for several minutes, repeat.

I would assume yes since I know people use them to control maxijets on waveboxes if im not mistaken. Can you point me to one that will do this?