It's the latter. The scale is meant for real-time monitoring of rapidly varying force (the primary application is about monitoring the force derivative and repeatable max force logging). It uses an aluminum load cell if you're familiar with those, there's a tad of a multi-kHz resonance that is typically overshadowed by the object properties.

These are very sensitive but they are likely not calibrated to within 0.1%, and certainly it's not easy to transfer this up several orders of magnitude withiut introducing huge errors.