Observed arrival · 2026-10-09
FloodMesh: a house-to-house flood messenger
FloodMesh describes a battery-powered device for sending short messages and SOS alerts between nearby units when mobile networks, internet, and grid power are down.
- For
- Households in flood-prone neighborhoods
- Worth noticing
- The project reports street-test reaches of 350 m between two units and 550 m with one relay in between.
Field notes
Messages are limited to 60 characters and can be entered in English or Tanglish; the displayed interface uses a keypad, with a two-key, three-second hold to initiate an SOS. The site says nearby units relay messages hop by hop, while SOS messages are shown only on responder units. It reports street-test ranges of 350 m between two units and 550 m with one intermediate unit; these are project-reported figures, not independently verified here.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
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