Water Level Sensor Module –Liquid Level Detection
The Water Level Sensor Module is a simple and effective sensor designed to detect the presence and level of water or other conductive liquids. It works by measuring the change in electrical conductivity across exposed traces, making it ideal for water tank monitoring, overflow detection, rain sensing, and STEM electronics projects.
This sensor is beginner-friendly and easily interfaces with Arduino, ESP32, and other microcontrollers using analog or digital readings.
Key Features
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Operating Voltage: 3.3V – 5V DC
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Output Type: Analog (variable with water level)
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Sensing Method: Conductivity-based PCB traces
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Fast Response Time
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Compact & Lightweight Design
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Easy Interface with Microcontrollers
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Low Power Consumption
Applications / Arduino Projects
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Water tank level monitoring
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Overflow and leakage detection
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Rain detector projects
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Automatic pump control systems
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Smart irrigation prototypes
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STEM education & DIY electronics
Compatibility
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Arduino Uno / Nano / Mega
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ESP32 / ESP8266
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Raspberry Pi (with ADC)
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Other 3.3V / 5V microcontrollers
How It Works (Simple Explanation)
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Water touches the exposed PCB tracks
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Higher water level → more conductive paths → higher analog value
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Microcontroller reads the value to trigger alarms or control pumps
Why Buy From ScienceStore.pk?
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Tested and reliable sensor modules
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Ideal for students, teachers & makers
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Fast delivery across Pakistan
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Perfect for school labs & STEM workshops
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Supported by Pakistan Science Club






