A. function button 1) I/O ----- (Switch): Press the I/O button to start/close the control system after turning on the power.2) Smoke ----- (smoke mode): Press the Smoke display to switch from grill mode to smoke mode to display So-0~So-7, press + - key to set Smoke gear 0~7 to achieve manual Adjust the size of the smoke The initial boot system defaults to So-4.In Smoke mode, the display will switch to the current temperature or set temperature for 2s for the user to view.3) Temp ----- (display switch): Actual/Setpoint switch to display actual temperature/set temperature4) ?+ ?- ? (setting adjustment): touch + - function key in grill mode to automatically select Setpoint, then you can adjust the preset temperature value of Grill/Meat, and set SO-0~SO-7 in Smoke mode choose5) Probe (furnace temperature/meat temperature display switch): Press the button to switch the Grill/Meat oven temperature/meat temperature display.B. indicator light 1) Actual---- (furnace temperature): Indicates that the digital tube device displays the actual temperature. When the Grill light is on, the display is the temperature in the furnace. When the Meat light is on, the meat temperature is displayed.2) Setpoint---- (preset temperature): Indicates that the digital tube device displays the set temperature value. When the Grill light is on, the display is the temperature control setting value in the furnace. When the Meat light is on, the meat temperature control setting is displayed. value.3)Grill---- (furnace temperature): Indicates that the furnace probe is currently selected.4) Meat---- (Meat temperature): Meat temperature probe is currently selectedCompatibility:Compatible with All Louisiana Wood Pellet Grills Item 50125Purpose/Field of ApplicationThis product is a wood pellet barbecue oven, suitable for all kinds of wood pellet smoked ovens.Package includes:1pcNote:Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you