41/2 hour power outage

[Lance]

Ok, Mother Nature. Bring it on! I'm ready for you.
Just went shopping this morning and bought 3x multi plug-in extension cords, a small dolly to move the generator from the garage to the sundeck, a head lamp so I don't have to hold the flashlight in my mouth while setting up the generator on the deck, 2x lanterns to light the sump room and the tank room. All I need now is to find some sort of alarm that will go off when the power goes out to wake me in the wee hours. Anybody know where to find such a thingy?