Everythings coming up Milhouse!
The temp up and down are “backwards” because the mod is in the shell upside down (if you hold it with the battery slot opening facing up). For example opening the menu is fire button and temp up. If you hold it in the way I am describing, temp up for us is the physical temp down button due to the mod being upside down, so opening the menu seems to be temp down and fire. You can flip the screen by holding the two temp buttons while the unit is off.Lol!! Yeah, but now we need to know what ground and gauge are!!
And I'm still waiting for this answer ..........still haven't used my new Tetra in Tubo mode because I've gone through every single line there is in settings and I can't find one damn thing anywhere of why this flipped on me. My temps also only go up or down by five degrees even though I have it set at 1 degree increments in the settings. Been using it with Arctic Fox so far and it's been more than totally fine. In fact it runs 100 times better than it does in Tubo, which tells me there's gotta be more going on than just the temps flipping sides.
I’m not sure if you use C or F. F can move in 5 or 10 degree increments. I think c moves in 1 and something else but I don’t ever use it so you’d want to confirm in the manual.
In addition to the quick start guide there is an extended manual on their site. I think someone already pointed you at it, but it explains all the things you’re asking about: https://shop.lamart.ch/index.php?route=product/category&path=85_84