Networks of smart air-quality monitoring stations for cities, communities and industrial areas - designed, built and installed by Claritech. We measure particulate matter, gases, noise and microclimate and show the readings in real time, on a map.
Claritech PM4 is our smart urban-environment monitoring station, designed for Smart City projects. We deliver communications infrastructure and monitoring systems, including for public authorities - networks of measurement stations for environmental parameters. The stations designed and manufactured by Claritech are installed and integrated into municipal networks and platforms.
Why Claritech
Our own station, Claritech-branded
We design and manufacture the measurement stations. That way we control the quality, the integration and the long-term support, from the choice of sensors to the platform.
Sensirion SEN55 sensor
At the core we use the Sensirion SEN55 measurement module, factory-calibrated, with automatic fault detection and a typical service life of over 10 years.
Autonomous power
Solar-panel power, with a backup battery to keep running without mains supply. It mounts on a pole or facade in minutes.
Flexible communication
LoRa, Wi-Fi or LTE. We build either dense LoRa networks with a central station, or independent stations connected directly over LTE.
Software platform included
Real-time map, graphs, statistics, exportable reports and threshold alerts - plus an API for integrating the data with other applications.
Public-sector references
Environmental monitoring systems delivered for public authorities and community projects, with data collected continuously and available in real time.
What the station measures
A single station covers every parameter relevant to air quality and urban comfort - and reports its own operating status in parallel.
Particulate matter
PM1, PM2.5, PM4 and PM10 - the reference indicators for urban pollution.
Gases and organic compounds
VOC Index (volatile organic compounds) and NOx Index (nitrogen oxides) - for traffic, combustion and industrial sources.
Ambient noise
Ambient noise level, A-weighted - to correlate noise pollution with traffic and activity in the area.
Microclimate
Temperature and relative humidity - the context the pollution readings depend on.
Self-diagnostics
Battery voltage, solar-panel energy production and internal conditions - the health of every station, in the same interface.
Continuous reporting
Measurements transmitted automatically and continuously, at regular intervals - real-time data.
Weatherproof construction, solar power and pole or wall mounting, CE, REACH and RoHS compliant.
For detailed parameters, measuring ranges and sensor accuracies, download the technical specification sheet (PDF).
How the network works
A Claritech network scales from a single station to dozens of measurement points. Stations can be mounted fixed, on a pole or facade, or supplied in a mobile, relocatable form for temporary measurement campaigns. We choose the topology that fits the site:
LoRa network with a central station
The measurement stations communicate over LoRa with a central station, which collects the data locally and forwards it automatically, over LTE, to the platform. Suited to dense networks over compact areas.
Independent stations with an LTE modem
Each station has its own LTE modem, with a SIM supplied by us or by the client, and transmits directly to the server over a secure VPN connection. Suited to geographically dispersed measurement points.
The data lands in a platform installed locally or in the cloud. Every station has a backup battery, so a power cut doesn’t mean lost measurements. Software updates are delivered remotely (OTA).
What you see in the platform
The platform runs in any browser, on desktop, tablet or phone, with no app to install.
Real-time map
Every station, placed on a map, with its measured value and a color code by concentration level.
Trend graphs
The evolution of each parameter over time, for each station - so you see trends, not just instantaneous values.
History and statistics
Measurements are retained for at least one year. Minimum, maximum and average values, in tabular form, for any selected time interval.
Reports and export
Saveable, reusable reports, with CSV/Excel export, from one or more monitoring stations.
Threshold alerts
Configurable thresholds that trigger notifications when limits are exceeded, over the time intervals you choose.
Secure access and API
Username-and-password authentication, plus an API for integrating the measurements into other applications.
Where it’s used
Cities and local authorities
Accurate data for public decisions and for assessing the impact of measures, policies and projects.
Communities and education
A tool for information and awareness that engages residents with the air quality in their own neighborhood - including public displays in schools.
Construction sites and industry
Monitoring point sources of pollution, where the fixed national network doesn’t reach.
Traffic and busy arteries
Correlating particulate matter and noise with traffic intensity, at the city’s critical points.
Residential areas, schools, hospitals
Air quality in the areas with direct impact on health and comfort.
Indoor and technical spaces
For indoor environments we also integrate Aranet sensors (CO₂, temperature, humidity), connected to the Claritech FOCUS platform.
Case studies
Air-quality monitoring in 5 schools in Bucharest
Outdoor sensors, 4G connectivity and hallway kiosks with 32-inch screens showing air quality live - delivered turnkey and managed centrally, as part of the “Cetățeni pentru aer curat în școala ta” (Citizens for clean air in your school) program.
Mobile air-quality stations
Compact, metrologically calibrated stations measuring PM10, PM2.5, vibration and noise pollution, with remote monitoring - part of an environmental monitoring project in the Black Sea Basin, for the Constanța County Council.
Request an air-quality monitoring solution
Tell us the area you want to monitor and the type of pollution you care about, and we’ll propose the number of stations, their placement and the network topology - together with the platform and the reports you need.