I have an acurite with one of those battery operated remote probes for humidity nad temp. It works great and i have the display unit hung on a big suction cup from the front glass door of the enclosure. Works perfect for me.
I think this is the one I use
https://www.acurite.com/wireless-the...y-sensors.html
Yeah, herpstat 2 can control two heat sources and provide 2 probes. You can also upgrade to metal probes at the time of purchase for like $2 (going to finally bite the bullet and get a herpstat 2 soon)