Electronic Refrigerant Charging Scale RCS-7010 1.charging, recovery ... and air-conditioning tools and accessoriesElectronic Refrigerant Charging Scale is used for refrigerant charging, recovery, ... lbs, +-0.5% of reading.RCS-7030 0-30kG range of weight, units: kg, lbs, oz., ... display.9V battery, about 30 hours continuous use.Portable plastic case packed. RCS-7010 Electronic Refrigerant Charging Scale