Etekcity ESN00 Food Nutrition Macros Scale Digital Kitchen Calorie Keto Scale with Nutrition Facts Display and Track Counting Function, Bluetooth High precision strain gauge, precision: 0.01oz/1g, capacity: 11lb/5kg Unit converts in pounds (lb), ounces (oz), grams (g) Convenient auto-zero, tare, and auto-off functions You can calibrate it by yourself if the scale is inaccurate Low Battery and Overload indication; 2x1.5V AAA batteries included