There are many different types of level gauge, each with its own application.
Transparent level gauge are highly useful in chemical industries and petrochemical fertilizers. As the fluid is stored in high pressure and high temperature, the transparent level indicator is very useful to find the fluid level.
Reflex level gauge are for applications that involve high temperature, high pressure and use of corrosive fluids. The colorless fluid used in this apparatus gives better clarity to level indication.
Magnetic level gauge are red followers that need magnetic level gauge. Cylindrical floats and powerful magnets are used to find the level of the fluid. The float movement is followed by magnetic capsules, and thus, the level in indicated. This type of indicator has good visibility and is absolutely safe to use as it contains non-fragile metal chamber.
Some other level gauge for reference are tubular level gauge, float and board level gauge, sight flow indicators, window type sight flow indicators, manometers, and bi-color indicators. Some of the level gauge are provided with various features, such as a built-in controller, continuous output measurement, and adjustable alarm switches.