Mostly Linear Gauges are used as simulators of some real gauges like thermometers or any loaders. A lot of special charting elements like axes or tooltips are not necessary quite often, though they can be used if necessary.
Here you can find four gauges: two of LED type, which are colored with a color scale and divided into 6 and 8 eight parts, and two of bar pointer type, which look like dark grey bars with labels representing values above the bars. The first LED pointer gauge has the range of values from 0 to 30 with ticks each 5 points, and the second has the range from 0 to 24 with ticks each 3 points. All gauges' tooltips show the information about each gauge: its name and the value it represents.