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.
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