Presets for beef, pork, poultry, and more are at the bottom of the screen (scroll right for more). Tap on the preset you want to use, and Range will set the alerts. If there's more than one option (such as doneness in beef), you'll get to choose between them, but you can long press the preset icon to set them all immediately.

Open Settings (the gear icon) to switch between USDA recommended and gourmet temperatures for the presets.