Turbidity Sensor Module – Water Quality Detection Sensor for Arduino, ESP32, Raspberry Pi & DIY Monitoring Systems

Technical Specifications

• Sensor Type: Optical Turbidity / Water Clarity Sensor
• Operating Voltage: 5V DC (module)
• Output:
  • Analog Output (A0): Variable voltage based on water turbidity
  • Digital Output (D0): Threshold-based (adjustable using potentiometer)
• Interface: 3-pin (VCC, GND, OUT)
• Signal Indicator: Power LED & digital output LED
• Turbidity Range: 0 NTU – 1000 NTU (approx., depends on model)
• Operating Temperature: 5°C to 90°C
• Cable Length: Approximately 90–100cm (depending on version)
• Sensor Principle: Light scattering (photodiode + LED)
• Waterproof Sensor Probe: Yes
• Applications:
  • Water quality monitoring
  • Industrial fluid turbidity measurement
  • Aquariums and fish tanks
  • Environmental & pollution monitoring
  • DIY Arduino/ESP32 IoT projects

Technical Descriptions 

The Turbidity Sensor Module is a reliable and easy-to-use water quality detection sensor designed for measuring the turbidity or cloudiness of water. Using an optical LED and photodiode system, it detects suspended particles and converts turbidity levels into an analog or digital output.

This module is fully compatible with Arduino, ESP8266, ESP32, Raspberry Pi, and other microcontrollers, making it ideal for DIY water monitoring systems, aquaculture, environmental sensing, and industrial turbidity measurement.

With its waterproof probe, adjustable threshold, and dual output interface, the turbidity sensor provides stable and accurate readings of water clarity. It is commonly used in IoT water monitoring, smart filtration systems, aquariums, environmental research, and automation projects.