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For most outdoor-driven pollutants, indoor concentration divided by outdoor concentration is the single most diagnostic number in the dashboard. It tells you whether your house is sealed, filtered, or leaking.
Pressure is not an IAQ compliance channel. It is building-physics context that helps explain when outdoor air, weather, and HVAC operation are shaping indoor readings.
Breathe Better. Live Smarter.
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 sensorSix sensors. Twelve signals.
Built on genuine Sensirion, Bosch, and Texas Instruments sensors.
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