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Like level switches, small floating ball level switches are widely used in both daily life and industry. These switches are characterized by a simple structure, ease of use, and reliability. Generally speaking, compared to mechanical switch devices, they offer advantages such as smaller size, faster response times, and a longer service life. Let’s take a look at their working principle and features. Product principle of small floating ball level switch devices: Generally, if a reed switch is installed as needed inside a sealed, non-magnetic metal or plastic tube, a floating ball with an internal ring magnet can be fixed at the appropriate position relative to that reed switch within the tube. Usually, the density of the floating ball is less than that of the liquid, causing the ball to float up and down within a certain range; the magnet inside the ball attracts the reed switch, triggering it to close and thus controlling the liquid level. Normal open and normal closed are the states when no liquid is injected. Second, the product features of small floating ball level switches: 1. They generally use rhodium as the material for their magnetic reed switch contacts, allowing the contact life to reach 2 million cycles. 2. Special treatment of reed switches enables them to function properly at high temperatures of 200°C. 3. Additionally, the float switch offers reliable overall performance, with a variety of materials and specifications available for selection.