Interactive chart - coming soon
Use reset when starting over. Factory reset clears saved Wi-Fi, settings, claim, and account-linking information from the device.
Use reset when changing ownership. A factory reset is the required step before someone else pairs the device.
Pair again after reset. A reset device needs to go through Bluetooth pairing, Wi-Fi setup, and claiming again.
Before transfer. If you are selling, gifting, or recycling the sensor, factory reset it first.
Related reading
Understand the reading
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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.
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Before you sell or give away your device
Factory reset the sensor before another person receives it.
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Privacy, data, and resale questions
Use the privacy portal and published Privacy Policy for binding answers about personal data, sharing, deletion, and export.
Find the source
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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.
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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.
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The Tuesday-morning fan sound
A brief Tuesday fan sound is normally the SEN66 sensor self-clean cycle.
Take action
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Quiet hours, brightness, and sound
Use Quiet Hours and device/app settings to reduce display, light, and sound behavior on a schedule.
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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.
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Terrestream vs Awair Element
Awair Element is a compact five-factor monitor; Terrestream adds broader particulate sizing, NOx, pressure, light, and deeper interpretation.