With 7 switchable units of g, ct, oz, ozt, dwt, tl and gn, this mini professional digital scale is designed for small items requiring accurate measurement such as gold, jewelry, powder, medicinal materials, etc. Features: Compact size and light weight, portable to carry and store. Adopts sensitive and precise sensor to ensure the weighing accuracy. Waterproof and dustproof cover design effectively protects the electronic scale and prolongs its service life. Three optional capacity including 1000g capacity with 0.1g accuracy, 200g capacity with 0.01g accuracy and 500g capacity with 0.01g accuracy. 7 switchable units including g, ct, oz, ozt, dwt, tl and gn.  The tare weighing function ensures a more precise result. Powered by 2 * 1.5 AAA battery (NOT included), convenient to replace. It will automatically turn off to save power if there is no operation within 1 minute. A multifunctional scale for weighing small items such as gold, jewelry, powder, medicinal materials, etc. Specifications: Material: ABS Color: Black Power Supply: 2 * 1.5V AAA battery (NOT included) Capacity/Accuracy: 1000g/0.1g, 200g/0.01g, 500g/0.01g (Optional) Switchable Units: g, ct, oz, ozt, dwt, tl and gn Auto Power Off: 1 minute Function: ON/OFF, Tare, Mode Item Size: Approx. 12.7*7.7*2cm / 5*3.03*0.79in Item Weight: Approx. 106g / 3.74oz Package Size: Approx. 14.5*9*2.6cm / 5.71*3.54*1.02in Package Weight: Approx. 123g / 4.34oz Packing List: 1 * Digital Scale