Wow! 111 is WAY too hot. Don't take this the wrong way, but at that temperature burns and neurological damage pretty much a guarantee - even in the short term. Unplug the heat pad until you have a way to control it. Cooler temperatures are far more safe than exposing them to that kind of heat.
As far as humidity goes, most dual readout units read temperature only at the probe and humidity is then read from the display unit itself.
For the "knowledge" part: 1) If you can feel warmth with your hand (especially at the top of the substrate), it's too hot - hands are poor indicators of the proper temperatures for BPs anyway; 2) A warm day where these guys are from is in the low 90s (it may actually feel cool to the touch); 3) The substrate should not be thick enough for them to dig when using a heat mat (or any UTH) - just think enough to cover the bottom and that's about it; and 4) They will absolutely move the substrate around in their search to thermoregulate (control their body temperature).
Please take some time to read at least the Caresheet link and Glass Tank link in my signature below. They will go a long way in helping you steer towards a much more welcoming home for your BP.
Best regards,
Eric