This temp controller model is not the cheapest but it's one of the most reliable which is why we include this in all the new Grand Deluxe Fridge units that we manufacture. No other temp controller is as reliable that we have found so far. We used to use the Italian made Carel temp controllers but due to the number of issues we switched to the far more reliable Dixell controller model and to date have never had one fail. So for a really awesome controller that has all the defrost, fan, compressor relays installed this is the way to go.