Maybe think about it as a range.
If your going to call the range QMaster
Then think of how you could expand the range
Qmaster easy - Pit temperature
Qmaster lite - pit temperature + meat probe
Qmaster plus - pit temperature + 2 meat probes + option to purchase additional probes (up to 4)
Qmaster pro - All singing & Dancing!
Maybe in the future with Wifi or bluetooth & software