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The liquid level switch is a new type of liquid level switch. It is suitable for almost all liquid media, as well as for measuring moderately dense solid powders or particles that can flow freely. Since liquid level switches have virtually no moving parts and suffer little mechanical wear, they require no maintenance or adjustment, making them simple and convenient to use. In addition, this level switch utilizes foreign advanced technologies and original imported chips, offering advantages such as a long service life, stable performance, and high reliability. It also features strong adaptability (the electrical parameters and density of different media being measured do not affect the measurement), no need for calibration (no on-site calibration is required regardless of the medium being measured), and maintenance-free operation. It is widely used in the process control of liquid levels in industries such as metallurgy, building materials, chemicals, light industry, and food processing. Cable float level switch: The cable float level switch is designed based on the principles of gravity and buoyancy. It has a simple and rational structure, consisting mainly of a float body, a high-capacity microswitch placed inside the float body, a driving mechanism that enables the switch to be turned on or off, as well as a three-core cable connected to the switch. The notable features of this level switch are its stable and reliable performance (no false operations caused by fluctuations in the liquid level). It also boasts advantages such as being non-toxic, corrosion-resistant, easy to install, and having a long service life.