GemOro Platinum XP500 is a precision, high capacity digital scale with an accuracy of 0.01g and can weigh up to 0.5kg on the 4″ square stainless steel weighing platform. Scale includes two weighing trays/covers; the large tray serves as a scale cover and the small tray covers the weighing platform.  We suggest the purchase of 2 – 200 gram calibration weights item number 200-3592.  Powered by 2 AAA batteries. 110V adapter #200-3634 also available, if desired (sold separately). Scale measures 5.25″ D x 4.5″ W x 0.94″ H. Stainless steel weighing platform measures 4″ x 4″.  5-year limited replacement warranty.