Nextriv Sense IAQ7-in-1 air quality station with CO₂

What it is for

If there is a "classroom and office standard" in climate monitoring, this is what it looks like: seven parameters in one white enclosure with a large paper-like display. Temperature, humidity, CO₂, volatile organic compounds, pressure, light and human occupancy — Nextriv Sense IAQ sees the room as a whole: both the air quality and whether anyone is in it at all. That combination turns data into decisions: ventilate where there are people and CO₂ is rising; don't waste energy where it's empty.

The best testimony to the maturity of this design is the scale of its deployments: this is the class of device chosen for regional healthy-school programmes, where sensors work in hundreds of classrooms at once and report readings every few minutes. The secret of its popularity? A 4.2″ e-ink display that tells the class "time to air out" with an emoticon and "traffic lights", a built-in acoustic alarm on threshold breaches, and around 3 years of operation on replaceable batteries — without a single cable across hundreds of rooms.

There is also an engineering touch that administrators love: when the motion sensor detects emptiness for 20 minutes, the display stops refreshing (measurements and transmission continue) — the battery doesn't work for an empty room. And 18,000 records of local history that cannot be manually erased provide full data accountability in disputes and audits.

Under the hood: CO₂ measured optically (NDIR), volatile organic compounds reported as a readable 1–5 index — from "fresh" to "time to act", no chemistry PhD required. Light measurement up to 60,000 lux supports daylight-driven lighting control, the motion sensor with an 80° × 55° field and a range of up to 5 m covers a typical room from one mounting point, and barometric pressure completes the picture for building automation. All of it in a flat enclosure mounted with tape or screws — with USB-C for when the display needs to work more often.

Usage scenarios

• Region-wide school network: a sensor in every classroom reports temperature, humidity and CO₂ every few minutes. The administration sees all the schools on one dashboard, and teachers get a simple cue to air the room.
• A single school: sensors of this class verify ventilation performance in classrooms — it's about pupil concentration and limiting pathogen transmission in the infection season.
• University campus: the readings feed a digital twin of the campus — the university analyses indoor environmental quality across time and space, combining comfort with academic research.
• Class A office building: motion plus CO₂ reveal the real use of meeting rooms — the booking system releases "dead" bookings, and cleaning goes where people actually were.
• Clinic: the acoustic alarm on a CO₂ threshold breach in the waiting room gives staff an immediate prompt to act — without logging in anywhere.
• Community centre: shared spaces with irregular use gain objective measurement — airing and heating follow real events, not the calendar.

Key features

• 7 parameters in one device — one installation instead of three separate sensors.
• Large paper-like 4.2″ e-ink display with several content layouts and a light/dark theme — data visible from afar, energy use close to zero.
• Emoticons and "traffic lights": air assessment at a glance, understandable with no training.
• Built-in acoustic alarm — a threshold breach is heard in the room, not just in the app.
• Smart display sleep: a room empty for at least 20 minutes = the display sleeps while measurements keep flowing.
• 18,000 records of local history with no manual erase — full data accountability.
• Retransmission after connectivity outages — zero gaps in the charts.
• Configuration via NFC, USB-C or remotely via downlink — convenient one by one and fleet-wide.
• Direct device-to-device communication within the Nextriv network — e.g. motion in a room can trigger a relay with no server involved.
• Power your way: a set of replaceable batteries (approx. 3 years) or permanent USB-C.

In the Nextriv system

Seven metrics from one device means seven independent sets of alarm thresholds in the Nextriv platform — each with two warning and two critical levels. Events get readable codes, statuses (active → acknowledged → resolved) and team comments, and notifications go out over six channels: from e-mail and SMS to MS Teams and Discord. Escalation policies make sure an unacknowledged alarm moves up the chain.

On the dashboards (nearly 20 widget types) air data meets occupancy: multi-series charts, room comparisons, presence status. PDF reports — also generated on a schedule — document comfort for the school management and parents, while XLSX/CSV exports feed your own analyses. Measurement history reaches back up to 5 years. Quiet hours and rate limits protect the team from a notification avalanche, and a sensor silent for longer than twice its reporting interval gets an offline status — an empty room will never be mistaken for a dead sensor.

Typical deployments

• Schools: an IAQ sensor in every classroom improves learning conditions — the pattern of mass educational roll-outs counted in tens of thousands of devices.
• Offices and buildings: the emoticon hints when to air out; occupancy data optimises bookings, cleaning and HVAC.
• Healthcare: waiting rooms and consulting rooms with an on-site acoustic alarm and full history in the platform.
• Hotels: continuous oversight of guest comfort with alerts on threshold breaches.