Water Quality Monitor Kit: Build an Arduino TDS, pH & Turbidity Tester for Safe Drinking Water

Every part needed, pre-tested for compatibility, with an AI build companion trained on this exact project. Shipped from Bengaluru in 3-5 days.

Turn your Arduino Uno into a portable drinking water safety station. This kit brings together the three most critical water parameters — TDS/EC, pH, and turbidity — and lets you classify any sample as safe or unsafe with a single glance at the LCD. Whether you're checking your tap water, a school filter, or a local borewell, you'll have a clear, sensor-driven verdict backed by WHO and BIS guideline thresholds.

What You'll Build

A compact, battery-operated monitor that reads TDS (total dissolved solids), pH, and turbidity in sequence, then displays all values on a bright 16x2 LCD along with a simple “SAFE” or “UNSAFE” recommendation. You'll calibrate each sensor with the included reference powders and standard solutions, wire everything on a breadboard, and load the pre-written Arduino sketch. In under four hours, you'll be testing real water samples and making data-driven judgments about drinkability.

What You'll Learn

• Calibrate a TDS/EC meter probe and analog pH electrode using buffer solutions
• Connect and read multiple analog sensors via the Arduino Uno’s ADC pins
• Drive a 16x2 LCD through an I2C backpack to reduce wiring clutter
• Implement a composite safety logic that weighs TDS, pH, and turbidity against drinking water standards

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

Ideal for CBSE Class 11-12 students preparing science exhibition models that demonstrate applied chemistry and electronics. ATL Tinkering Labs can deploy it for hands-on environmental monitoring modules, while B.Tech ECE/EEE students gain practical sensor instrumentation experience. Smart India Hackathon teams focusing on clean water access will find it a ready-to-extend platform.

Built and Backed by Compoden

Every Compoden kit ships with an AI build companion trained on this exact project — accessible via a QR code on the box, with WhatsApp and email backup. We've spent 10 years building projects for makers, schools, and institutions across India. If a part fails because of a manufacturing defect, replace it free within 7 days.