Review on π KOOBOOK 2-Piece Liquid Level Controller Sensor Module for DC 12V | Water Level Detection Sensor with Drainage Control Circuit Board by Michael Harden
They don't work with clean water.
Purchased to control the rainwater level in the greenhouse tank. It turns out they need a certain amount of mineral ions in the water to function. They work great with tap water. WILL NOT WORK WITH CLEAN WATER (rain, RO, distilled).
- Security
- unreliable
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