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Breathe Better. Live Smarter.

Turn air-quality knowledge into action.

One sensor. Twelve signals. Indoor readings connected to outdoor context and plain-English recommendations. Everything you just read can be measured live in your own home.

$249 USD one-time

Buy Terrestream Explore the sensor
  • No subscription required
  • 30-day returns
  • 1-year limited warranty
  • Fast shipping via FedEx

Six sensors. Twelve signals.

Built on genuine Sensirion, Bosch, and Texas Instruments sensors.

  • COâ‚‚
  • IAQ
  • VOC
  • NOâ‚“
  • PM1
  • PM2.5
  • PM4
  • PM10
  • Temperature
  • Humidity
  • Pressure
  • Light

Included

  • In the box: the sensor, USB-C cable, power adapter, and printed field guide
  • Dashboard and mobile app included
  • Privacy-first air data

Works with

  • Home Assistant
  • MQTT