Jewelry Scale :Perfect for food, tablets, powder, gemstones, coins, jewelry, weed, gold, silver, coins and etc. 1 x Electronic Digital Scale Kit. Scale Pan Size: 58 58 mm. 2: Wait until the LCD display "0.0" and then press and HOLD [UNITS] or [MODE] key for 3 seconds, the LCD will display "CAL", and then release the [UNITS] or [MODE] key.
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