Features: High Precision Strain Gauge Sensors System, Capacity: 40kg/10g (unit: g, kg, lb, oz), Blue Backlight function, tare function, Auto power off, data lock function, over load indication, low battery indication, power: 3V (AAA Battery-2pcs). Portable Scale Ideal for a wide range of different applications, this portable electronic scale accurately displays the weight of your catch of the day or your packages and parcels.