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Turbidity Sensor Module Kit for Arduino

Turbidity Sensor Module Kit for Arduino

₹929.00Price

💧 Turbidity Sensor Module Kit

Water Quality • Clarity Detection • Analog/Digital Output

📌 What is a Turbidity Sensor?

A turbidity sensor measures the cloudiness or clarity of water by detecting how much light is scattered by suspended particles.

👉 More particles (mud, algae, impurities) → higher turbidity
👉 Clear water → low turbidity

✔ Commonly used in water quality monitoring systems

⚙️ Working Principle

  • The sensor contains:

    • Light source (IR LED)

    • Light detector (photodiode/transistor)

Process:

  • Light is emitted into water

  • Suspended particles scatter the light

  • Detector measures intensity of received light

  • Output voltage changes based on turbidity level

✔ Clear water → more light reaches detector → higher output
✔ Dirty water → less light reaches detector → lower output

🔌 Module Components

A typical kit includes:

  • Turbidity probe (waterproof sensor head)

  • Signal processing module (with comparator)

  • Connecting cable

🔌 Pin Configuration (Module)

  • VCC → 5V

  • GND → Ground

  • AO → Analog Output

  • DO → Digital Output (threshold-based)

🔄 Output Types

1. Analog Output (AO)

  • Continuous voltage (0–4.5V approx.)

  • Used for precise turbidity measurement

2. Digital Output (DO)

  • HIGH/LOW signal

  • Triggered when turbidity crosses set threshold

  • Adjustable using onboard potentiometer

📊 Measurement Range

  • Turbidity Range: 0 – 1000 NTU (approx.)
    (NTU = Nephelometric Turbidity Units)

📊 Output Behavior

Water ConditionTurbidityOutput Voltage
Clear waterLowHigh voltage
Slightly dirtyMediumMedium
Very dirtyHighLow voltage

✨ Key Features

  • Real-time water clarity detection

  • Analog and digital output options

  • Waterproof probe

  • Adjustable sensitivity (via potentiometer)

  • Easy interface with Arduino and microcontrollers

📊 Technical Specifications

  • Operating Voltage: 5V DC

  • Current Consumption: ~30 mA

  • Response Time: < 500 ms

  • Operating Temperature: 5°C to 90°C

  • Interface: Analog + Digital

🛠️ Applications

  • Water quality monitoring systems

  • Aquarium and fish tank monitoring

  • Drinking water analysis

  • Industrial liquid monitoring

  • Environmental monitoring projects

  • Smart irrigation systems

🔗 Arduino Connection

  • VCC → 5V

  • GND → GND

  • AO → A0 (analog pin)

🧠 Working with Arduino

  • Read analog value using analogRead()

  • Convert voltage to turbidity using calibration formula

Example concept:

  • Higher voltage → cleaner water

  • Lower voltage → more turbidity

⚡ Advantages

  • Simple and low-cost

  • Easy to use with Arduino

  • Provides real-time monitoring

  • Dual output modes (analog + digital)

⚠️ Limitations

  • Requires calibration for accurate NTU values

  • Sensitive to ambient light interference

  • Probe can get dirty over time

  • Not laboratory-grade accuracy

💡 Important Notes

  • Clean the sensor regularly for accurate readings

  • Avoid air bubbles on probe surface

  • Use shielding to reduce light interference

  • Calibrate using known turbidity samples

🧾 Summary

The Turbidity Sensor Module Kit is a practical sensor for measuring water clarity by analyzing light scattering.

✔ Ideal for:

  • Arduino projects

  • Environmental monitoring

  • Water quality systems

👉 It’s a simple yet powerful tool for detecting water pollution and cleanliness.

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