Here, I'll even add to the pile of 'useful' information.

Herpstat.

If you're looking for something cheaper, then you're going to reduce quality. So if that's why you're trying to find alternative suggestions, then be prepared for reduced security when it comes to your hardware.

Herpstats are reliable and have useful functions, as well as a far higher reputation amongst the community. With that, it comes at a cost. And if you're working with clutches, $150 for a Herpstat is nothing compared to losing everything. Or hatching out animals with missing eyes. Or kinks. Or having them die in egg due to problems.

So it's up to you. Whichever you feel works best for you.

Cheaper now, higher risks. More expensive now, more peace of mind