Flexzion Digital Refrigerant Charging Scale Electronic Programmable Recovery AC Weighing Weight 220 lbs Capacity for HVAC Compact with Portable Carrying Case and LCD Display Three display modes: KG, LB and oz. High accuracy and resolution Extra large LCD display with background lamp. Flexible long coil design Built-in memory remembers previous reading. Slip-Resistant 9" x 9" weighing Platform Rugged, compact design, completely portable Can be used with all refrigerants. Heavy duty carrying case included