The Sylvania A0-91 Panel Meter is a panel-mounted AC ammeter with a 0–50 A full-scale range, designed to display current on a control panel at a glance. It reads alternating current and provides a direct analog indication of load in electrical panels and equipment. This model sits in the AO-91 family of panel meters, a designation historically used for 0–50 A AC amperes devices from General Electric and related brands.
