The phrase "temperature dial" refers to a control knob on a device, like an oven or a heater, that allows you to adjust the level of heat or coldness. Full definition
Some models will have a set temperature whereas others will have adjustable temperature dials. (expressing-mama.com)
There are many options for your restaurant range including: Low profile back guards, casters (adjustable or non-adjustable), oven racks, storage base (with or without doors), flanged deck mount legs, Celsius temperature dials, range match griddle, range match griddle, fryer, boiler as well as the following (thehansengroup.net)
The touch screen and rotating temperature dial have a slick, intuitive design that will add to your home's aesthetic. (geekwrapped.com)