Aquarium Water Quality Monitor Kit With Arduino - Know Exactly When Your Water is Right

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

Whether you're a young science explorer checking if tap water is safe for guppies, or a parent helping with a CBSE project, this kit turns a handful of components into a working aquarium monitor. In one build session you'll measure total dissolved solids (TDS) and water temperature-the two numbers that tell you if your tank has soft, hard, or ideal water for aquatic life. The included sensors, breadboard, and Arduino Uno remove the guesswork, so you can compare RO water, borewell water, and even local pond samples side by side.

What You'll Build

A real-time aquarium quality monitor that reads TDS and temperature through waterproof probes, then displays both values on a bright 16x2 LCD. With the TDS EC sensor you can test different water samples-distilled, hard tap water, or your own aquarium-to see how dissolved minerals change the readings. The project fits neatly on a breadboard, works right away without soldering, and helps you understand why soft water isn't always ideal for fish that need some mineral content.

What You'll Learn

• Connect and read a waterproof DS18B20 temperature sensor with one digital pin on the Arduino Uno
• Calibrate a TDS EC meter and convert its analog output into ppm (parts per million)
• Display sensor data on a 16x2 LCD using the I2C backpack to save pins and simplify wiring
• Interpret TDS ranges-distinguish soft water (0-100 ppm) from hard water (300+ ppm)-and relate them to fish health

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

This kit is designed for CBSE Class 7-12 students working on science exhibitions, ATL Tinkering Lab innovators, and even first-year B.Tech ECE/EEE students who need a quick sensor integration demonstration. The plug-and-play breadboard setup makes it safe for ages 10 and up, while younger builders (5-9) can follow along with a parent's help to compare RO and tap water samples-turning a simple observation into a mini-research project about water hardness.

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.