This article contains the Owner's Guide for the DT251 Ninja® Foodi™ Smart XL Pro Air Oven.
1. Check the bottom of your box, you should see the model number near the bar code.
2. Check the base of the blender (where the motor is) it should have a rating label that features your model number.
3. Check your manual. Your product's model number is listed on the front cover of your instruction booklet.