Alkali ScientificW4000-100 Mini 100g Balance is extraordinarily compact easy to use and convenient for a variety of laboratory weighing applications With a footprint of only 2 6 x 3 9 inches these Mini Balances offer exceptional accuracy and linearity through their full weighing ranges ccurisW4000-100 Mini 100g Balance capacity these digital balances feature an easy to read backlit liquid crystal display Buttons for ON/OFF MODE and TARE are located on the front for easy access The software includes a calibration function for in-lab calibration with a 100g or 500g calibration weight Calibration weights are available separately Designed for portability the Alkali Scientific Mini Balances are powered by 2 AAA batteries (included) After one minute sitting idle the power automatically shuts off to conserve battery life Ideal for lab or field use each balance includes a snap on protective cover with instructions conveniently printed on the underside Warranty on Mini Balances 90 days