Scale-Tec's Precision Balances have what it takes for lab work, field use, and various industrial applications. They feature multiple weighing units, RS- 232, rechargeable battery pack and AC operation. Density and specific gravity determination are easy with the below balance weighing feature, and the removable draft shield eliminates Visit: https://scienceequip.com.au/collections/balances/products/scale-tec-electronic-precision-balance-cws1002-1000g-x-0-01g