Moisture sensor circuit diagrams
Water-level Indicator
Simple, two-wire, remote monitoring unit Three-LED level display, 9V battery powered Read more...Water Activated Relay
In his circuit Marin has used two transistors wired as a high gain compound pair. Read more...Water Pump Relay Control
Water reservoir automatic level control. Simple circuitry - 12V supply Read more...Plant Watering Watcher
A flashing LED signals the necessity to water a plant Very low current consumption - 3V powered circuit Read more...
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