Professionele weerstations en sensoren
LoEco werkt met professionele instrumenten die voldoen aan WMO-normen en geschikt zijn voor langdurige buitenopstelling — van kuststations tot boomgaardsensoren tot stedelijke luchtkwaliteitsmonitoren.
Extreme heat events are becoming more frequent and intense. Heat stress indices like Wet Bulb Globe Temperature (WBGT) vary sharply within a city â shifting between shaded streets, plazas, and parks over distances of just a few hundred metres.
Conventional weather stations are too sparse to capture this variability. Most low-cost sensors lack black-globe and accurately shaded temperature measurements under strong sun, leading to biased WBGT estimates and missed local extremes exactly where people are most at risk.
Trofic (Temperatuur, Radiatie en OmgevingsFactoren Index-Constructie) is a compact sensor housing that combines a shaded dry-bulb thermometer, relative humidity sensor, and a 15 cm black-globe thermometer in one unit.
A black-painted copper tube acts as a solar-heated chimney, creating buoyancy-driven airflow across the dry-bulb and humidity sensors. They remain well ventilated in strong sunshine without any mechanical fan â eliminating a major source of power consumption and maintenance.
This design reduces solar radiation bias in daytime air temperature by around 58â79% compared with common passive shields in consumer all-in-one weather stations.
Trofic uses LoRaWAN for long-range, low-power data transmission â no cellular modem, no solar panel, no SIM subscription required.
A typical configuration with an off-the-shelf LoRaWAN edge device operates for approximately two to five years on a single set of batteries. No mains supply, no solar panel, no moving parts.
2â5 year operationLoRaWAN uplink reaches municipal, community, or private gateways over several kilometres. No SIM card, no monthly data plan, no dependency on cellular coverage.
No SIM requiredEnclosure is 3D-printed from approximately 400 g of PETG using standard copper components. Design files can be shared for local printing, reducing transport costs and enabling rapid network scaling.
STL files availableCopper and PETG plastic separate easily at end-of-life using basic tools, supporting circular material flows. No bonded composites or rare materials that complicate recycling.
End-of-life readyTrofic provides the temperature inputs needed for WBGT while avoiding the complexity of field wet-bulb maintenance.
In laboratory tests under strong simulated sun, Trofic's dry-bulb temperature stayed within 0.8 °C of true ambient air â comparable to actively ventilated reference systems, but without fans or external power.
Field comparisons with nearby national reference stations show Trofic's air temperature closely tracking official observations, with realistic diurnal black-globe responses to solar radiation.
Shaded, passively ventilated. Bias ~0.8 °C under ~1000 W mâ»Â² â versus 1.9â3.9 °C in typical consumer all-in-one stations.
Integrated 15 cm black-globe thermometer at the same site, capturing direct solar load for WBGT calculations.
Co-located polymer humidity sensor. Natural wet-bulb temperature derived from standard meteorological models.
Wherever heat stress threatens people and operations but installing conventional WBGT stations is impractical.
Street-level heat-stress maps for vulnerable neighbourhoods, playgrounds, transit stops, and outdoor public spaces. Support heat action plans with granular, real-time WBGT data.
Off-grid monitoring around construction sites, warehouses, ports, and logistics yards where mains power and network access are limited but worker heat safety is critical.
Temporary or seasonal networks around sports fields, schoolyards, and outdoor events to support heat-safety decisions and activity modification thresholds.
Locally manufactured, low-maintenance networks in regions with limited infrastructure and high exposure to dangerous heat â where conventional monitoring is financially and logistically out of reach.
MeteoA supports the full chain from instrument design to live heat-stress data â tailored to your project and region.
Site selection, density planning, and siting guidelines for representative WBGT. We advise on gateway placement and coverage estimation for your area.
Trofic instruments, recommended LoRaWAN gateways and edge devices. Procure assembled units or print and build locally using provided STL files and build documentation.
Automated pipelines, quality control, and WBGT computation using established methods and your preferred thresholds. Integrate into your platforms or use MeteoA dashboards and APIs.
Options for city pilots, citizen-science campaigns, research partnerships, and LMIC deployments. We work with municipalities, universities, and NGOs.
Vertel ons over uw omgeving, meetdoelstellingen en sector. We adviseren de juiste combinatie van sensoren en communicatiehardware.