High capacity 220lb/100kg refrigerant charging/ recovery scale, calibrated to strict NIST standards, Fully enclosed and removable metal scale platform enables use of product in or out of the protective case. Large, highly visible 11/2" ×2"/37mm×48mm high resolution LCD readout displays either Imperial or Metric measurements in.25oz/10g increments. The ergonomic hand held remote incorporates a 6ft coil cord, a hanging hook and is backed with a magnet for attaching to metal surfaces. Full mechanical and visual overload protection. Operates 60 continuous hours on two 9V alkaline batteries. Includes automatic off feature.