Jun 26, 2026
It’s done. CosmoMeter’s first complete prototype is finished.
Where We Started
A few months ago we had a breadboard, a list of components we couldn’t source, and a tight deadline. Since then we’ve navigated supply chain issues, redesigned our signal conditioning approach, built and iterated on the enclosure, and validated the system against real radioactive materials at the CTN.
What We Built
The final prototype brings everything together: the Geiger-Müller tube, the power system running off a USB-C connected battery, GPS, IMU, SD card data logging, Wi-Fi data offload, and a custom 3D printed enclosure with a side-opening locking mechanism, GPS antenna port, charging switch, LED, and an engineered button extension that reaches the top surface of the box.
What It Does
CosmoMeter monitors cosmic radiation in real time, logs data with GPS positioning and flight phase context, and offloads everything wirelessly when on the ground. It’s compact, personal, and designed to be carried by pilots and cabin crew without any regulatory overhead.
What Comes Next
It’s been an incredible journey. More soon.