And I don't care what it costs - I'm fed up with bad hatches. I just opened the rest of the eggs from my hatch and only a few were infertile; the rest had chicks that failed to hatch and I know it was due to the temp and humidity. I was looking at this one, but can you use it in a Hovabator with the turning racks in? I'm confused: https://www.gqfmfg.com/pdf/3018 instructions.pdf I've always used the Accurite combos from Walmart for around $8 but no two ever measure the same and I'm tired of guessing and opting for a happy medium. Please tell me what works for you and where I can get it. I use still air LG's and Hovabators. Thanks!