The June Oven (2nd generation) has one thermometer jack on the left side. After consistent testing with our hardware engineering and Culinary Team, we confirmed that the one Food Thermometer is sufficient enough to guarantee best results anywhere in the oven's interior. For best results, be sure to insert it into the largest food item. Due to the oven's insulation and even cooking across the oven's interior, you can count on the Food Thermometer to do its job!