indicating needle

Almost all of the indicating needles behind Higby's cot were down to zero.

One end of the coil is fixed to the housing of the device and the other drives an indicating needle.

Whereupon the indicating needles of two meters in the main laboratory went enthusiastically through the full range of red and held unwaveringly against their stops.

This bellows configuration is used in aneroid barometers (barometers with an indicating needle and dial card), altimeters, altitude recording barographs, and the altitude telemetry instruments used in weather balloon radiosondes.

If the indicating needle of the contents gauge vibrates when the diver inhales that may indicate the diving cylinder pillar valve is only partially open and will not provide enough gas at the higher ambient pressures at depth.

He knew that in a few minutes, when Mandunga took place, the indicating needles on those machines would sink from the level of distress to the level of ease and Moaga's sickness would be over, she, would stay away from ganja ('marijuana', in the doctor's peculiar language) and eat more tapioca, take more rotabunga.