Tappecue V2.0 = 4 Probes capability and Wi-Fi BBQ Thermometer on sale for $179. Very user friendly
Thermoworks Smoke = 2 probes with different types of probes available. Uses radio frequency 2.4. $102 with shipping.
Very user friendly. PS. Mine is on order for when I do not need the Rock's Stoker.
Rock's Stoker = 6 probes with capability for more, both temperature monitor and temperature control, ability to control more than one pit,
When interface with the Savannah Stoker capability to control pellet Grill temperature anywhere by computer or phone. Most expensive and with additional probes one can hit $400 easily. Also for has a
large learning curve. PS. I have been using one for years going back to the non Wi-Fi___33 days.
Picture of Rock's Stoker interfaced with Savannah Stoker controlling Blaz'n Grill Works Grid Iron.
To monitor the pit temp and one food temp I would go with the smoke especially with WiFi around the corner.