4 modes: smart for pour over coffee(put in the coffee powder and the scale will automatically tare again in 3 seconds.Then start pouring water to make coffee. the electronic scale will automatically start timing and weighing); common can weight and time manually; smart for making espresso coffee; pour over coffee proportion (the first step,put the filter bowl and sharing pot on the scale and the scale will tare automaticlly. pour the coffee powder into the filter bowl, and the electronic scale will clear automatically. after the scale is cleared automatically, start to pour water into the bowl.The ratio of coffee powder to injected water will be shown on the left side of the display). In either , the scale will not automatically stop timing until you click the timer key. High precision strain gauge Sensors system to ensure a accurate measurements from 0.1oz /1g to 2000g/ml. Excellent for cafe and home use. 100mah large capacity, endure up to 15h, USB rechargeable, easy to use. Specification: Material: Stainless Steel+Plastic Size Chart: Size: 15.4x14cm / 6.06x5.5inch Package Includes: 1 Piece Kitchen Scale 1 Piece USB Cable 1 Piece Manual : Color might be slightly different due to the color calibration of each individual monitor. Please allow slightly measuring deviation due to manual measurement.