Wasser Flüssigkeitsstandsensor Schalter AC/DC 5V Auto Controller Board Modul Kit
4,22 €
It has the characteristics of small size, simple wiring, low power consumption, large switching capacity, strong anti-interference, and high functional stability. It can stably realize that when the pool (water tower) is short of water, the water pump is automatically started for pumping, and the pump is automatically stopped when it is full.
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