Analog Turbidity Sensor Module for Water Quality Monitoring
= Suspended Particle Detection for Arduino and Environmental Projects =
The analog turbidity sensor module is designed to measure water quality by detecting the level of suspended particles (TSS) in a liquid . By measuring the light transmittance and scattering rate, the sensor's output changes with the turbidity level, making it ideal for environmental monitoring, wastewater treatment, and DIY water quality projects .
Measures Total Suspended Solids - Determines water clarity by detecting light transmittance and scattering
Flexible Dual Output Modes Provides analog (04.5V) and adjustable digital threshold outputs
The analog output provides a 0-4.5V signal proportional to water clarity
This sensor can be applied in rivers, wastewater systems, and sediment transport research
The top of the probe is not waterproof – do not submerge beyond the waterline
= Technical Specifications =
| Parameter | Value |
|---|
| Operating Voltage | 5V DC |
| Operating Current | ≤40mA |
| Response Time | <500ms |
| Analog Output | 0-4.5V |
| Digital Output | High/Low (adjustable threshold via potentiometer) |
| Operating Temperature | -10°C to +90°C (depends on model) |
= Key Features =
+Optical Detection Principle - IR LED and photodiode measure transmitted light intensity
+Fast Measurement Response time under 500ms for realtime monitoring
+Versatile Interface - Direct connection to Arduino analog and digital pins
+Adjustable Threshold - Onboard potentiometer for digital output sensitivity
== Applications ==
- Drinking water quality testing
- Industrial wastewater monitoring
- Environmental pollution detection and sediment research
- Educational STEM projects and water science experiments
Low Cost and Reliable - Affordable option for DIY and professional applications
Arduino Compatibility - Easy integration with common Arduino libraries and tutorials
√ Compatible with Arduino Uno, Nano, and other 5V microcontrollers
√ Includes adapter board, sensor probe, and cable in many kits
√ Sensors calibrated to respond to turbidity changes with analog voltage output
= Troubleshooting =
Sensor always reads 0% or no output:
- Ensure probe is submerged in water sample
- Check VCC and GND connections
- Avoid loose wires
Unstable readings:
- Use shorter wires and proper grounding
- Clean the probe surface from debris or algae
- Consider implementing software filters (e.g., Kalman filter) for stable readings
