The Octagon comes in three different versions: the Eco, the Advance, and the Advance EX. The Eco just has an up/down knob for temperature and a glass thermometer. You have to twiddle it about to set it at the right temp, but once it's there, it's pretty steady. The Advance has a digital display where you set it to 99.5F and it regulates the temp itself. Both of those have two trays in the bottom that you put water in for humidity. You fill one tray for the incubation then both of them for lockdown. The Eco you'd have to put a hygrometer in to tell the humidity.The Advance does tells you the humidity on its digital display, but it doesn't regulate it for you unless you add the optional humidity pump. All three of these versions can be turned manually or put in the auto turning cradle. When you get everything in one package - the digital bator, the turning cradle and the humidity pump - that's called the Advance EX.
Another bator that regulates temp and humidity and turns the eggs is the RCom 20. It's on the same level as the Advance EX. RCom makes another fully automatic bator that's a lot cheaper, the King Suro 20, but from what I've read and what I've heard from friends who have them, they're not as good quality as the RCom 20 or the Brinsea. They seem to work fine at first but break down quite quickly. Like, within the first year. I suppose they'd be covered by a guarantee but it'd still be a lot of hassle...
Another bator that regulates temp and humidity and turns the eggs is the RCom 20. It's on the same level as the Advance EX. RCom makes another fully automatic bator that's a lot cheaper, the King Suro 20, but from what I've read and what I've heard from friends who have them, they're not as good quality as the RCom 20 or the Brinsea. They seem to work fine at first but break down quite quickly. Like, within the first year. I suppose they'd be covered by a guarantee but it'd still be a lot of hassle...