Review on 🐠 AISIBO Horizontal Liquid Float Switch: Accurate Water Level Sensor for Fish Tanks (NO NC) by Justin Woolley

Originally awarded a star for the non-working switch. When looking for a replacement, it turned out that with such float switches, a relay must be switched between the float switch and the power supply, in this case a mini water pump. This is in another company's product description, but not this one. Once I connected the relay to the circuit, the switch worked as it should. Product requirements should be more detailed for beginners.