Electronic Refrigerant Charging Scale RCS-7010 1.charging, recovery, weighing. 2.LCD display. ... weighing of commercial A/C, auto A/C, refrigeratory systems.RCS-7010 0-70KG range of weight, units: kg, lbs, +- ... 0.5% of reading.RCS-7020 0-100KG range of weight, units: kg, lbs, ... 30 hours continuous use.Portable plastic case packed. RCS-7010 Electronic Refrigerant Charging Scale