Set up your Terrestream
A short first-run path: power the sensor, pair it, connect Wi-Fi, claim it to your account, then place it where the room air can circulate.
Articles tagged "Support"
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Pair with the app
Use the 6-digit passkey on the device screen to create an encrypted Bluetooth pairing, then finish the claim flow in the app.
Connect to Wi-Fi
Terrestream uses 2.4 GHz Wi-Fi. You can configure it from the app or use the temporary setup network when no Wi-Fi is saved.
The Tuesday-morning fan sound
A brief Tuesday fan sound is normally the SEN66 sensor self-clean cycle.
Quiet hours, brightness, and sound
Use Quiet Hours and device/app settings to reduce display, light, and sound behavior on a schedule.
Factory reset your device
Factory reset clears saved device configuration, claim, and account-linking information so the sensor can be paired again.
Before you sell or give away your device
Factory reset the sensor before another person receives it.
Privacy, data, and resale questions
Use the privacy portal and published Privacy Policy for binding answers about personal data, sharing, deletion, and export.
Compare indoor air-quality monitors
A fair, sourced buyer guide to Terrestream, AirGradient ONE, Ruuvi Air, Awair Element, Airthings View Plus, Aranet4 HOME, Kaiterra Sensedge Mini, and IQAir AirVisual Pro.
Terrestream vs Awair Element
Awair Element is a compact five-factor monitor; Terrestream adds broader particulate sizing, NOx, pressure, light, and deeper interpretation.
Terrestream vs Airthings View Plus
Airthings View Plus is compelling when radon is central; Terrestream emphasizes multi-signal indoor behavior and local-friendly workflows.
Terrestream vs Aranet4 HOME
Aranet4 HOME is a focused portable CO2 monitor; Terrestream is a broader room air-quality system.
Terrestream vs IQAir AirVisual Pro
IQAir AirVisual Pro emphasizes PM2.5, CO2, AQI, and a large color display; Terrestream adds more indoor channels and source interpretation.
Terrestream vs AirGradient ONE
AirGradient ONE is an open-home indoor monitor with strong local-home appeal; Terrestream emphasizes polished room interpretation, commercial evidence, and buyer-ready guidance.
Terrestream vs Ruuvi Air
Ruuvi Air is a credible open-friendly SEN66 monitor; Terrestream emphasizes Wi-Fi-direct operation, a touchscreen display, outdoor-data fusion, and US buyer readiness.
Terrestream vs PurpleAir
PurpleAir is strongest as a particle and outdoor-map ecosystem; Terrestream is built for indoor room decisions across particles, gases, comfort, context, and recommendations.
Terrestream vs Apollo AIR-1
Apollo AIR-1 is a compact ESPHome/Home Assistant monitor with strong local-control appeal; Terrestream emphasizes a finished room device, broader buyer guidance, and included cloud intelligence.
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
Home Assistant
MQTT