An electromagnetic flowmeter is a device used to measure the flow of electrically conducting liquids. Electromagnetic flowmeters are widely used in the water supply and sewage industry to measure water and wastewater flow. They are also used in measuring the flow of technological water (e.g. in mines) or in the food industry (e.g. juice production, dairies). The device works on the principle of Faraday's law of electromagnetic induction and uses the phenomenon of electromagnetic induction.

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A pressure switch is a device that monitors the pressure in the system and automatically responds to changes in pressure, turning on or off devices depending on the set pressure thresholds. Pressure switches are widely used in hydraulic and pneumatic systems and other applications requiring pressure control.