Profile: Landis + Gyr, Inc., specializes in solid-state & electromechanical residential meters, commercial & industrial meters, optical probes and meter sockets & mounting devices. The MAXsys™ E850 elite meter provides the flexibility to upgrade meter functionality in the field using the Q4FL soft-key upgrade software. Each soft-key upgrade feature required a specified number of bullets to enable the function in the meter. It is capable of dynamically correcting for inaccuracies of current transformers (CTs) across the operating range of the meter.