Observed arrival · 2026-09-07
ClearSkies Is Putting Radon on the Neighborhood Dashboard
A community project in Iowa distributes low-cost sensors that measure indoor radon every 10 minutes and stream the readings online.
Field notes
The project describes a distributed sensor network rather than a one-time testing service. Its stated hardware chain runs from an RD200 pulsed ion-chamber sensor through an ESP32 and ESPHome firmware to Firebase Realtime Database, with readings reported every 10 minutes. The page says each unit costs $124 to build and is given out at no charge through donations. The public device panel is illustrative; access to actual device data appears to require a login.
Observed signals
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Editorial observations of this landing page, not a rating.
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