Next pages (had to go look at these):

Fan = fan speed
Temp = asic temperature (kind of - it's near the asic)
Pwr = wattage consumed
mV and mA = input voltage and current at the plug

Last screen:

FH = free heapmemory (on the esp32 I assume - I have no idea what this means to the user)
vCore = asic voltage
IP = the IP of the Bitaxe on your network
v2.x.x.x = software version