Upgraded "P" Set Button - With the "P" button on the digital thermostat controller, from P0 to P10, 10 different smoky gears are adjustable. Temperature can be reached in smoked mode: 180℉-200℉. Easily change your desired smoky flavor on different foods. Advanced Mode - Digital control panel for Traeger medium and medium-large, large grills, and extra-large pellet grills with 3 mode programs to choose from Pr0, Pr1, or Pr2. Chef Mode - Narrow the temperature deviation between the ambient probe readout and the central zone of the grilling grid by an optional compensation temperature. Compatible with Pellet Grills - Unidanho control board for Traeger Pro 20, 22, & 34, Texas Elite 34, Lil Tex 22, JUNIOR ELITE 20, Ridgeland, Heartland, Mesa 22, Century 22/34, Silverton (2019), and Bronson 20. (Except PTG) Replacement part number BAC365 BAC236. Unidanho upgraded digital control is compatible with Traeger wood pellet grill and increases the stability of the controller, improving the compatibility of the Traeger control panel and equipped with more stable temperature control. How to activate Chef Mode? 1. Turn the Temperature Control Dail on Shut Down Cycle, Switch OFF. 2. Hold "P" Set and Switch On. 3. Turn the Dail to choose a compensation temperature. 4. Switch OFF and turn the Dial to Shut down Cycle, the system will retain your choice. About the Advanced Mode? In Advanced Mode, the controller provides 3 temperature control programs to match different size of grills (cooking surface area). How to activate the Advanced Mode? 1. Turn the Temperature Control Dial onto Shut Down Cycle, Switch OFF. 2. Hold "Probe Selector" button and Switch On. 3. Turn the Dial to choose a Program Code. 4. Switch OFF and turn the Dial onto Shut down Cycle, the system will retain your choice.