bearing preload indicator

instantaneous vertical speed indicator / instantaneous vertical-speed indicator (IVSI)

bearing indicator

wind relative bearing / wind-relative bearing

air-flow indicator

artificial horizon (gyro horizon/ attitude indicator)

desiccant indicator

gyro course indicator

indicator console

indicator lamp

indicator light

indicator system

performance indicator

radiac computer-indicator

range height indicator (RHI) scope

target indicator

telltale indicator

turbine inlet temperature indicator

vertical gyro indicator

vertical scale indicator

counter indicator

gyroscope course indicator scale

zone-beat indicator

fire extinguishing system indicator disc

slave indicator

indicator sight glass window

indicator elevating mechanism

standard performance indicator dictionary

capacity indicator

distant indicator

electric indicator lamp

elevation indicator regulator

engine detonation indicator