TS-300B Arduino Turbidity Sensor Water Quality Module

This module measures water turbidity - how cloudy or clear a sample is - by shining infrared light through the water and reading how much of it scatters back to a detector. More suspended particles scatter more light, and the module turns that into both a continuous analog reading and a simple digital threshold output, so a project can either log a turbidity trend over time or just trigger an alert past a set cloudiness level.

It runs on 5V, draws under 40mA, and responds in under half a second, which is fast enough for continuous monitoring rather than periodic sampling. The 4-pin interface (power, ground, analog out, digital out) matches the wiring pattern of most hobbyist water sensors, so it drops into an existing water-quality project alongside pH or TDS sensors without extra adaptation.

Typical uses are aquarium monitoring, water quality testing rigs, and environmental sensing projects that track sediment or contamination in a water sample.