
TikTok
TecPen Fluid: Brought to life in 3D
A closer look at the 3D product animation Uku Lab created for TecSense and the TecPen Fluid.
3D animation and motion design, TecSense
TecSense builds the TecPen Fluid, a precision oxygen-measurement instrument from Austria. The brief was an explainer video that could do two jobs at once: explain what the instrument does, and show the engineering quality behind it.
Making Austrian precision visible.
A 48-second video built entirely in 3D, with concise on-screen text and no spoken dialogue.

Social Cut
A short-form look at the product animation, showing how fluid motion, clean visuals, and precise storytelling make complex technology easier to understand.
The TecPen Fluid measures dissolved oxygen in liquids. That purpose is simple to state and hard to picture, because the thing being measured is invisible. The video's job was to make the invisible subject visible, then connect it to the instrument that measures it.
We built the video entirely in 3D: liquid and molecular visualization to establish the problem, and a photoreal product model to carry the answer. Concise on-screen text does the explaining, so the video works with the sound off and needs no translation of spoken dialogue.
Technical videos usually fail in one of two directions: they oversimplify until the product loses its credibility, or they overload the screen until only an engineer can follow. The TecPen Fluid video had to hold the middle, clear enough to follow in under a minute, precise enough to respect the engineering it represents.
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The instrument is introduced in deliberate stages, so each pass adds information instead of noise.
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Close passes over the brushed housing and connectors let the build quality speak for itself.
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Liquids, dissolved oxygen, and molecular detail are visualized so the product's purpose is understood without a manual.
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Short lines of on-screen text carry the argument one thought at a time, matched to what is on screen.





The finished piece is a complete 48-second explainer: 3D visualization of liquids and molecular detail, a photoreal product model, controlled lighting, deliberate camera movement, and short on-screen lines that keep the argument moving. It works as a standalone video and cuts cleanly into shorter product moments.
For visitors who prefer reading: the video establishes that every liquid contains dissolved oxygen and that every liquid has a unique oxygen profile. It then introduces the TecPen Fluid, shows the instrument in close material detail and in an industrial setting with the line Built for Industry, and closes on the TecSense lockup with the product name. There is no spoken dialogue.