annunciator

n.

信号器；宣告者，通报者；信号机；

Electrical testing device having voice annunciator
Speech Annunciator Warning Indicator System: Preliminary Evaluation
Systems with Human Monitors: A Signal Detection Analysis
Flexible pressure tubes and conduits
Personal alarm system
Ink jet cartridge with separately replaceable ink reservoir
Blockage hazard alarm in an intravenous system
ANNUNCIATOR AND DYNAMICALLY MAINTAINED PLAY LIST FOR A JUKE BOX THAT PLAYS DIGITAL AUDIO FILES
Environment-aware call annunciator
Keypad annunciator graphical user interface