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The SEN66's individual channels each drift differently. COâ‚‚ self-calibrates against outdoor air, PM loses a few percent per year, VOC and NOâ‚“ are relative baselines by design. Here is what changes and what does not.
Accuracy, precision, and drift are three different things, and consumer-grade sensors trade absolute accuracy for cost and form factor. Here is what the numbers on the dashboard actually mean.
Three sensor packages, six sensing elements, twelve signals. Here is what is inside the device, what each part measures, and the physical reasons it can and cannot do what it does.
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.
Included
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