How a sweet demo opened eyes to the power of 3D volumetric monitoring

12/05/2025

Author: Ida Rehnström

Trade shows can be exhausting. Endless booths, flashy displays, and the challenge of getting people to really stop and engage. But sometimes, a simple idea cuts through the noise.

Let us tell you the story about the candy alarm, a little demo that ended up being one of the most pedagogical showcases we have done. It not only attracted crowds, it opened eyes to the magic of 3D volumetric monitoring.

Imagine this: A bowl of candy, sitting innocently on a pedestal. But as soon as someone reached in to grab a sweet treat, a warning lamp alarmed. Not when they walked close by. Not when they hovered near. Only when their hand actually entered the invisible zone we had defined, down to the centimeter.

People were mesmerized about this centimeter-precise spatial detection in 3D. We could define invisible boundaries in space and get exact feedback when they were breached. As attendees reached in and triggered the light (or tried to avoid triggering it),  One of the most common reactions was: "This would be perfect for museums."

And indeed, museums were among the earliest adopters of this technology, creating invisible protection zones around invaluable artifacts, preventing accidental contact, and giving curators powerful new tools for preserving history without the need for bulky glass or physical barriers.

It is not easy being pioneers in this space. Educating people about what 3D monitoring can be a challenge. We hope the candy alarm did not just protect the snacks, we hope it helped spread knowledge, sparked curiosity, and showed what is possible when invisible precision meets real-world creativity.