FJC 2850 Electronic Scale Heavy Duty Di-cast Aluminum Refrigerant Scale 9 inch X 9 inch Platform 15 minute Auto shut off to refrigerant flow when charge is complete 80 kg capacity Remove from case before using XL LCD Display with Bubble Keypad and 9v battery included Accurate to +/- 1/2 ounce or 0.5percent of total weight whichever is greater