Hey I would recommend you getting a seedling heat mat with a thermostat like this: https://www.amazon.com/dp/B016MKY7C8/ref=mp_s_a_1_1_sspa?keywords=seedling+heat+mat+with+thermostat+controller&qid=1685351938&sr=8-1-spons&psc=1&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEzRTQ0Rko5TVM2RUJCJmVuY3J5cHRlZElkPUEwNTU0OTI3MUJaREc1S1kwME1IVCZlbmNyeXB0ZWRBZElkPUEwNzUxNjk1M1ZRRDdEOUNINUpBTyZ3aWRnZXROYW1lPXNwX3Bob25lX3NlYXJjaF9hdGYmYWN0aW9uPWNsaWNrUmVkaXJlY3QmZG9Ob3RMb2dDbGljaz10cnVl
Put this in a styrofoam box/cooler and you made yourself a nice, safe incubator
But it is a one stop solution for people who don't want to research it or tinker around with a homemade setup. Thus justifiying the markup.
I mean, it's this with Challenger branding and a price hike. I wouldn't call that markup justified, personally.