The IDOL-1KG Series features a dark chrome bezel and reverse back-lit LCD is a versatile pocket scale that will be useful for many applications. It features 6 weighing modes; gram, ounce, carat, grain, pennyweight and troy ounces. A high precision load cell allows for accurate and repeatable results. For your convenience, the flip-open lid is detachable and doubles as an expansion tray. It has a maximum capacity of 1000g and a minimum resolution of 0.1g. In most cases this scale will arrive in perfect calibration, which are pre-calibrated from manufacture. Scales that weigh in 0.1g or smaller increments will need to be calibrated from time to time. Many things can effect a scales calibration including but not limited to: shipping, humidity and general use. Please remove clear protective cover from weighing surface before you weigh items.