Cosmic Ray Counter Kit with Arduino Uno: Detect Invisible Radiation and Count CPM

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 curiosity about the invisible universe into a working instrument. This kit lets you build a device that reveals the constant shower of cosmic particles from deep space—muons and gamma rays hitting Earth every second. The Geiger-Muller tube module converts each ionizing event into an electrical pulse, the Arduino counts and calculates counts per minute, and the 16x2 LCD displays the data in real time with an audible chirp from the buzzer. It’s a tangible introduction to nuclear physics, space science, and environmental monitoring.

What You’ll Build

A portable radiation monitor that counts background cosmic ray events as CPM (counts per minute) on a bright LCD screen. Every individual detection triggers a short beep, giving you immediate audio feedback. Use it indoors to compare radiation levels from building materials, or take it outside to see how cosmic ray flux changes at ground level. The entire system runs on a 9V battery, making it ideal for science demonstrations and hands-on experiments.

What You’ll Learn

• How a Geiger-Muller tube detects ionizing radiation and generates pulses
• Reading digital pulse signals with an Arduino Uno to count events
• Converting raw counts to CPM and displaying live data on an I2C LCD
• Using an active buzzer as a real-time per-event indicator

Kit Contents

Why Buy This Kit Instead of Sourcing Parts Separately

Who This Kit Is For

This kit is perfect for school students preparing for science fairs or CBSE Class 11-12 physics projects on radioactivity. B.Tech ECE/EEE undergraduates can quickly prototype a radiation monitoring system. It also fits ATL Tinkering Lab initiatives and STEM clubs across India, giving young makers a taste of particle physics.

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.