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Envora Labs
Reserve Envora One
Devices
Envora One Available Eleven channels · one fused IAQ score Envora Radon Coming soon Real-time radon · 0–2,000 Bq/m³
Capabilities
Features Alerts, history, dashboards Developers API · MQTT · Home Assistant Envora Fleet Multi-device · org · SSO · audit
All sensors
Overview of the eleven measurements
Carbon Dioxide ppm The breath signal. How fresh is the air you are in? Carbon Monoxide ppm Low-level exposure, tracked over time. Particulate Matter µg/m³ See what you breathe. Down to one micrometre. Temperature & Humidity °C · %RH Comfort is a range, not a number. Barometric Pressure hPa Weather, altitude, storms — all in one number. VOC & IAQ Index index Every gas. Every particle. One honest score. Sound Level dBA The ambient floor, measured — never recorded. Ambient Light lx Your circadian signal, measured.
For your space
All solutions
 Home Kitchens, bedrooms, nurseries, basements. Envora shows you what you breathe — and tells you how to fix it, usually for free. Office & Co-work CO₂ is the single strongest environmental lever on office productivity — and the cheapest to fix. Envora gives facilities teams and founders the number to argue with. CO₂ and indoor air quality monitoring for schools Classroom CO₂ and indoor air quality evidence for better ventilation decisions, measurable cognitive lift, and the data trail governors and parents want. Labs & Clinics Envora One is precise enough for laboratories, clinics and regulated spaces, and comes with a signed calibration certificate per device ID. Studios & Gyms Hot yoga, spin, HIIT and small studios generate extreme humidity and CO₂ loads. Envora tells you how your ventilation is holding up — live, per-room, per-class. Podcasts & Studios Envora flags the HVAC hum, the fridge compressor, the neighbour's drill — and the concentration drift that flattens your delivery — before the tape picks any of it up. Landlords & Letting Continuous, timestamped indoor air quality records for every unit you manage — so damp disputes end in data, not arguments.
What it protects against
All protection guides
 Mould & damp risk Invisible until it is not. Allergies & dust sensitivity The 40–50% RH sweet spot. Long-term toxic gas exposure What you cannot smell, Envora can. Cooking pollution Your kitchen is an industrial chimney. Sleep & bedroom air Sleep is an environmental sport. Winter dry air Heated air is parched air. Outdoor air events When the air outside is worse than inside.
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Theme
Buyer's guide

Best air quality monitor for Home Assistant

If you run Home Assistant and want clean, first-class indoor air quality data — not a screen-scrape — this is what to look for.

See Envora One
  • No home subscription
  • Factory calibrated
  • Signed calibration certificate
  • API · MQTT · Home Assistant
  • Local-only mode available
  • 30-day returns
  • 2-year warranty
Who this is for

Home Assistant users who want raw sensor entities for automation, dashboards and long-term retention in InfluxDB / Prometheus / similar.

Feature-by-feature

Side-by-side comparison.

Where Envora One sits against the alternatives — sensors, calibration, integrations, ownership and price.

Feature Envora One Other monitors
Native MQTT broker Yes — auto-discovery on your existing broker Often community-only
REST API Yes — JSON, no rate limits for home users Varies
Webhooks for events Yes Varies
Local-only mode Yes Often cloud-only
Each channel as a sensor entity Yes — 11 entities per device Varies
Subscription required for HA No Some vendors paywall the API
Documented integration Yes — full setup guide Varies

Competitor specs are based on publicly available manufacturer information at the time of writing. Check the latest product pages for current spec.

What Envora One brings

The case for Envora One.

  • First-class Home Assistant integration — every channel as a sensor entity via MQTT auto-discovery.
  • Local-only mode means no Envora cloud account is required — perfect for self-hosted networks.
  • Webhooks, REST API and CSV export for full automation flexibility.
  • No subscription, no rate limits, no API key dance for personal household use.
Best for

Pick the one that fits.

Fair recommendations for different buyer needs.

Choose Envora One

You want the cleanest possible Home Assistant integration — every measurement as a sensor entity, local-only, no cloud dependency, no subscription.

FAQ

Comparison FAQ.

Does Envora One have a native Home Assistant integration?
Yes. Envora One publishes via MQTT with Home Assistant auto-discovery enabled by default — each of the 11 channels appears as a sensor entity in Home Assistant within seconds of pairing.

Can Envora One run without the cloud?
Yes. Local-only mode keeps readings on your LAN, MQTT runs against your broker, and no Envora cloud account is required.

Is there a rate limit on the API for Home Assistant?
No rate limits for personal household use. Home Assistant can poll the REST API or subscribe over MQTT as often as it likes.

How do I add Envora One to Home Assistant?
Plug the device in, connect it to your WiFi, point it at your MQTT broker (or use the bundled local broker) and Home Assistant will auto-discover every channel. Full setup guide on the developers page.
Decided?

Buy Envora One — £249, one-time.

Eleven channels. Factory calibrated. No home subscription. Free UK and EU shipping, 30-day returns, 2-year warranty.

Buy Envora One — £249 See pricing in full

Free UK & EU shipping · 2-year warranty · Reply within one UK business day.