Thanks for the info digi2k.
I took apart my controller today and screwed the coarse adjustment screw all the way in to set it at warm as possible. Set the freezer to 1 on the fine adjustment (warmest), and stuck my thermometer in a cup of water.
Six hours later, and it got a thin layer of ice and registers 32-33F
Tweaked it again, seeing if I can get somewhere north of 35F, but I might need an external controller since this doesn't want to get warm enough.