Generic term for needle gauge
Solution 1:
Each of these is a kind of meter. Your examples tachometers, speedometer give that away. They are commonly called gauges whether or not they are radial or round.
Generic term for needle gauge
Solution 1:
Each of these is a kind of meter. Your examples tachometers, speedometer give that away. They are commonly called gauges whether or not they are radial or round.