Interestingly, the PAX 2 didn't arrive with a manual for me. Not sure if this is an oversight (I hope so) or intended, but the content was nowhere to be found.
Thankfully, the CMO of PAX Labs confirmed the temp settings are the same as the PAX 1:
The temperature range is the same as the PAX 1, but there are now four settings instead of three so you can dial it in better. I'll ask our engineering team about the actual temps...I know the algorithms focus on the temp of the material in the oven, not the oven itself. But let me get some specifics... [Source]
He also explained how the new lip / draw sensor works with the oven and temps:
The new oven design is slightly smaller and deeper, and was built together with the new lip-sensing capability to specifically address how to keep the contents of the oven at the right temperature. I'll go for a longer response here in hopes to clarify.
In all oven-based vaporizers, the contents of the oven take longer to heat than the oven itself, so they're still heating up after the oven has hit its set temperature. Additionally, the contents of the oven always cool down while you are drawing on it. So, the vapor density and taste you get from an oven based vaporizer with fixed oven temp depends a lot on how long it's been since your last draw. This drove our engineers crazy, so they set out to build a system that could keep the temperature of the contents as consistent as possible. That required a new oven design with more surface area in the right places, and an auto-sensing feature to ramp up/down the oven based on how you use it.
For the PAX 2, after heating to its set temperature, the oven cools slowly when you're not drawing from it, so that the oven contents don't continue to heat unnecessarily when the device is waiting for you. When PAX 2 detects your lip on the mouthpiece (based on touch), it heats to full power to quickly replenish the heat the oven contents lost during the draw. Heating in this way keeps your content at steadier temperatures than fixed oven temperature does, delivering a consistent experience over a wide range of usage patterns.
We seriously nerded out on this feature, so I understand if that was a lot to take in. [Source]
Hope that helps!