What it detects
DOT placards, NFPA 704 diamonds, GHS labels, and UN markings. Full ERG guidance resolves from the UN number.
Free · Fully offline · Android
HazSight
See the danger. Know what to do. No signal required.
HazSight identifies hazardous-materials placards from a single camera photo and returns plain-language, action-oriented safety guidance from the 2024 Emergency Response Guidebook — running Google's Gemma 4 multimodal model entirely on-device, with zero network calls on the path from photo to guidance.
Debug build — installs outside the Play Store; you may need to allow installs from unknown sources. Requires a physical Android device (6 GB+ RAM) for on-device Gemma 4 inference.
Language
Guidance is delivered in English (the verified primary language). Other languages can be requested and are generated on-device by Gemma 4 — best-effort, not individually verified for safety-critical text.
Offline by design
The model and the full ERG database are on the device. Hazmat incidents rarely happen near reliable coverage.
Safety-first
Every interaction opens with a reminder not to approach hazards and to call 9-1-1. Emergency Mode auto-escalates on detected hazards.
This is a decision-support aid, not a replacement for emergency services. In an emergency, do not approach to get a better photo — call 9-1-1 and follow first-responder instructions.