Legal
Safety
SENSE reports how a surface responded to a tap. It never states or implies that a location is safe to cut, drill, nail or modify.
The rule
Never claimed
- Electrical wiring detection
- Live voltage detection
- Gas line detection
- Water pipe detection
- Structural safety assessment
- Hazardous material detection
- Depth or width measurement
- Any medical or health function
Nothing in the product may imply these capabilities, including by omission, imagery or analogy. “Like an X ray for your wall” is prohibited. So is any visual that suggests seeing through a surface.
Required copy
Every result screen carries:
Onboarding presents that notice before the first scan and requires an explicit acknowledgement. The full notice lives in the Safety screen in Settings and is reachable at any time.
Abstention
Abstention is a feature, not a fallback. When the tap quality is too low, the model is not confident, or the input looks unlike anything the model was trained on, the app says “Signal unclear. Scan again.” and reports nothing else.
The app also refuses to start a scan when no classifier is available or when the selected surface is outside the validated range. Wording explains why.
Language
| Use | Do not use |
|---|---|
| Likely structure detected | Stud found |
| This span responded like a cavity | Nothing there |
| Signal unclear | Any forced binary answer |
| Supplemental measurement | Detector, finder, scanner as a capability claim |
| Estimated centre | Exact location |
Failure modes to state plainly
- A cavity reported as structure leads to a hole in the wrong place.
- A structure reported as cavity leads to a fixing that will not hold.
- Both are more likely on unfamiliar wall constructions, with an inconsistent tap, with a loose band, in a noisy room, and without the microphone.