Refrigerant Charging Scale RCS-9020/RCS-9030 1. programmable, LCD display 2. refrigerants recovery, weighing 3. CE ... more customers’ demands.Programmable Refrigerant Charging Scale RCS-9020/RCS-9030 are programmable, and has a built-in alarm to indicate ... of weight, units: kg, lbs, +-0.5% of reading.RCS-9030 0-100KG range of weight, units: kg, lbs, oz., +-0 ...