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Water / Moisture Sensors & Detectors 

12 Volt Sump Pump Control
12 Volt Toilet Tank Refiller
Digital Water Wave/Tide/Level Meter (PIC16F876)
Hot Water Tank Indicator
Moisture Alarm
Plant Moisture Monitor
Plants Watering Watcher:  Varying brightness LED signals the necessity to water a plant. Very Low consumption,3V powered Circuit
Plants Watering Watcher 1
Plants Watering Watcher 2
Shower Stopper
Simple Emergency Sump Pump Control:  Sump Pump Control for12V DC Bilge Pump
Water Activated Relay
Water Level Alarm
Water Level Sensor
Water-Level Sensor Uses Hysteresis:  08/21/00 Electronic Design - Ideas for Design / A low-voltage electronic circuit that senses upper and lower water levels is often used for alarms and sump-pump activation. Since an electronic sensor has no moving mechanical parts, it eliminates problems with corrosion and wear and tear. The. . .

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