hey this is a fixed cycle timer. They cost around 90 bucks around here in socal. They are pretty expensive and hard to find from what others have told me. I am looking to sell mine, dont know if you are interested or not, but I was looking to get 70 bucks for it, its brand new. Again, it is 1 min. on and 4 min. off. If you are interested let me know and I will see what shipping would cost to Australia. Thanks man