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Product description of the float level switch: Simple structure and reliable performance – this product is capable of generating switch control signals under normal conditions, offering high reliability and strong resistance to interference. Durable: The product has a long service life, low failure rate when used correctly. Easy installation method, convenient adjustment method: The water level control range is adjustable; a screw is used to protect the cable signal, completing the installation. Wide range of applications and strong overall performance: This product is suitable for use with side streams, wastewater, oil, acids with concentrations lower than that of the medium, in environments where no pollution is allowed (such as the food and beverage industry), as well as for diesel engine vaporization and automatic fuel supply. The circuit is simple, economical, and practical: it operates at a voltage of 220V and a current of 10A; the application circuit for this product is simple, resulting in low usage costs. Wiring method for float level switches: 1. Using “black” and “blue” wires: The contacts are in the closed state when the float is at the lower water level, and they are in the open state when the float is at the upper water level. 2. Using “black” and “brown” wires: The contacts are in the closed state when the float is at the lower water level, and they are in the open state when the float is at the upper water level