Water Level Alarm Kit with Arduino Uno — Build a Tank Fill Indicator that Lights Up and Beeps When Full

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

With this kit, you’ll build a working water level indicator using five copper wire probes dipped into a tank or any container. As water rises, LEDs light up one by one; when the top probe gets wet, a loud buzzer alerts that the tank is full — no more overflowing, no wasted water. It’s a small project that solves a common household annoyance and plants the seed for larger automation ideas.

What You'll Build

A five-level water indicator that displays the fill status on a bar of LEDs, and triggers an audible alarm at the full mark. The probes can be adapted to a bucket, an overhead tank model, or even a school water-conservation demo. This project mirrors the logic behind real municipal pump controllers and gives a tangible start to understanding sensor-based automation.

What You'll Learn

• How to use Arduino digital pins as both input and output
• Detecting resistance changes between wet and dry probes
• Driving LEDs and an active buzzer with simple Arduino code
• Building a water level sensor circuit on a breadboard without soldering

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

Perfect for CBSE Class 11–12 students exploring Arduino-based projects, B.Tech ECE/EEE first-year labs, and ATL Tinkering Lab activities. Even curious kids aged 5–15 (with adult supervision) can build a water level alarm that solves a real household problem — ideal for science exhibitions and Smart India Hackathon junior ideas.

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.