The WO-USC-300 is equipped with automatic backlight system. Backlight will automatically turn on with weighing operation,and will turn off automatically about 15 seconds if the weight does not fluctuate. The professional scale will automatically turn off after 60 seconds if you discontinue use, to save battery consumption. During weighing operation, when weihgt is determined, a lock symbol will appear. This economical scale is ideal for jewelry,gold, gunpowder, diamonds,precious metals, ect. |