The Honeywell ED-462 is an Electronic Display unit that is part of the EFS-40 Electronic Horizontal Situational Indicator System. The ED-462 can function as an Altitude Direction Indicator (ADI) or a Horizontal Situation Indicator (HSI). The ED-462 electronic display has no front panel controls. When used as an ADI, an inclinometer is mounted on the front panel. The Ed-462's 4 inch CRT converts X & Y axis deflection signals to red-green-blue video signals.

The ED-462 is available in 32 variations including lighting voltage, face plate color, HIRF, cooling blower assembly and an inverted back. The ED-462 is controlled through a separate CP-470 Control Panel with information being processed by the SG-465 Symbol Generator. The ED-462 operates at a maximum altitude of +55,000 feet and a temperature range of -40°C to +55°C. The ED-462 is 10.58 inches deep, 4.18 inches high, 4.18 inches wide and weighs 5.40 pounds.