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Terrestream measures COâ‚‚ only - it does not measure CO. Use UL-listed CO alarms.
Carbon monoxide and carbon dioxide sound alike and the abbreviations look alike. They are completely different gases. Terrestream measures COâ‚‚ only.
A running engine ten feet from your living space. Cold-start emissions are the worst. Door seals matter more than you think.
The particle sensor sees smoke once it fills a room. A UL 217 smoke alarm sees it in seconds and screams loud enough to wake a sleeping family. They are not substitutes.
Radon is the second-leading cause of lung cancer in the US after smoking. It cannot be detected by any optical, NDIR, or MOX sensor; only alpha-particle counters can see it.
Terrestream measures a specific set of air-quality parameters. There are many hazards it does not measure at all - here is a non-exhaustive list of common ones, and the dedicated detector or test to use instead.
Homes built before 1978 (US) and before 1992 (Canada) are likely to contain lead paint. Renovating without containment releases lead-laden dust that no air-quality sensor can identify.
Asbestos was used in insulation, popcorn ceilings, vinyl flooring, and roofing through the 1980s. Disturbing it releases microscopic fibers we cannot detect; mesothelioma latency is decades.
The dashboard will tell you about your air. It will not diagnose, prescribe, or speculate about your health. The line between those two is bright and intentional.
Terrestream is not a smoke alarm. Every home needs UL 217 smoke alarms.
A common confusion: the sensor on your wall reads PM2.5, and smoke is PM2.5, so it must be a smoke alarm too. It is not. The two devices answer different questions on different timescales with different consequences for being wrong.
Breathe Better. Live Smarter.
One device. Six sensors. 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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