SD 20 – Optical Level Switch

The SD 20 Series optical level switch is a low-cost solution for reliable liquid detection. Using infrared light reflected through its prism lens, this sensor provides a rapid response without any moving parts, ensuring stable process control. A key benefit of the SD 20 is its integrated status LED, which gives you instant visual feedback on the liquid level, ensuring you’re always aware of the tank’s contents even from the outside.

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