The Emerson MGE-490-CONS-0000 is a Mobrey Magnetic Level Gauge (part of the Mobrey series) designed for visual indication of liquid levels in tanks and vessels. This particular configuration is a Consult variant, meaning it is engineered for custom or application-specific requirements where standard configurations may not apply. The MGE-490 model typically indicates a specific size (likely 4-inch chamber with 90-inch or 900mm length), pressure class, or design configuration requiring engineering review.