The 220 lb. capacity of the YELLOW JACKET® Economy Charging Scale makes it a great solution for both large capacity systems and critical charging of small systems. It’s precise 0.1 oz. resolution and 0.5% accuracy under all conditions make it one of the best refrigerant scales for HVAC&R service technicians on the market today. High accuracy resolution, compact, lightweight and easy to carry. Bag features carrying handle, nylon pouch with straps and accessory pockets. Long battery life - 30 hours of continuous use. Refrigerant tank capacity indicator shows how much liquid is left in the tank. It has a battery life indicator. Rugged, low-profile design with large, high-visibility LCD. Control module can be rested on flat surface or hung. Control module and long six foot coiled cord stores inside platform when not in use. Can be easily re-calibrated in the field with inexpensive reference weights. Programmable - enter desired charge weight and builtin alarm indicates when threshold has been reached. Built-in memory remembers all previous settings.