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Bring your air into focus.
$249 USD one-time
US pricing and fulfillment Shown in USD. Free US shipping, applicable tax calculated at checkout, FCC documentation published.
One sensor watches the room across twelve signals, fuses them with live outdoor data, and turns every spike into a single clear next step. The device, web dashboard, and mobile app are all included.
- $249 USD, one-time
- No subscription required
- Dashboard and mobile app included
- 1-year limited warranty
- 30-day returns
- Privacy-first air data
- Free shipping to the US, Canada, and Mexico
- 1-year limited warranty
- Web dashboard and app included
What's in the box
- The Terrestream sensor, with touchscreen and 15-LED underglow.
- UL-listed 18 W USB-C power adapter with US and Canada plug heads.
- 2 m braided USB-C cable, USB-IF certified for 60 W power delivery.
- Printed How to Breathe field guide for every measurement and color.
- Home Assistant, MQTT, local HTTP API, and Matter through the Home Assistant bridge.
- Fast shipping, setup help, and a 1-year limited warranty.