Micro-Weather Station – WMO-grade precision & solar autonomy : MeteoHelix IoT Pro | BARANI DESIGN

The MeteoHelix IoT Pro is a professional micro-weather station engineered to deliver WMO-compliant measurement accuracy in all climates. Designed around BARANI DESIGN’s patented double-helix radiation shield, it provides highly stable measurements of temperature, relative humidity, dew point, frost point, solar irradiation and atmospheric pressure, even in harsh, reflective or low-wind environments.

Exceeding WMO accuracy standards while remaining easy to deploy and operate, MeteoHelix IoT Pro is optimized for long-term stability with minimal sensor drift, making it particularly suitable for research-grade atmospheric monitoring and distributed environmental sensor networks.

Advantages :

• WMO-precision temperature and humidity measurements with very low long-term drift.
• Patented double-helix shielding that enhances natural ventilation and minimizes radiation bias.
• Solar-powered autonomous operation with internal Li-ion battery for several months without sun.
• Rugged, impact-resistant construction designed for continuous outdoor exposure.
• 3-in-1 removable sensor tip enabling easy calibration, replacement and full traceability.
• Accurate in all climates and environments, including snow, ice, dust, sand and high-reflectivity surfaces.
• Wireless communication options including Sigfox and LoRaWAN, suitable for IoT deployments.

Key Features :

• Measurement of temperature, relative humidity, dew point, frost point, solar irradiation, atmospheric pressure and rain (with compatible pulse-output rain gauge).
• Temperature accuracy up to ±0.1 °C in the 0 to 65 °C range, with stability better than 0.03 °C per year.
• Relative humidity accuracy of ±1.5 %RH, with low hysteresis and long-term stability.
• Atmospheric pressure accuracy of ±0.5 hPa (750–1100 hPa) with fast response time.
• Solar irradiation measurement from 0 to 2000 W/m² with sub-second response.
• Naturally ventilated MeteoShield Pro double-helix providing superior protection from solar radiation, dirt, rain, snow, sand and dust while maintaining clean airflow around the sensor.
• Wireless operation via Sigfox or LoRaWAN, with NB-IoT planned as an additional option.
• Environmental protection rating IP65W, resistant to dust and severe weather conditions.
• Operating temperature range from -33 °C to +65 °C (extended down to -45 °C with cold-weather battery), 0–100 % RH.
• Compact form factor with approximate dimensions of 170 mm diameter and 226 mm height, total mass about 1.2 kg (2.0 kg including stainless steel holder).

Typical Applications :

• Research-grade micro-climate monitoring in demanding environments.
• Environmental sensor networks in urban, industrial or infrastructure projects.
• Agricultural and agri-tech monitoring for irrigation, crop management and frost risk.
• High-reflectivity environments such as snowfields, water surfaces, pavements and rooftops where conventional shields struggle.
• Smart-city and IoT climate infrastructures requiring dense, distributed measurements.
• Remote autonomous weather stations with limited access to power and maintenance.
• Air-quality and compliance monitoring where accurate meteorological context is required.

Why choose the MeteoHelix IoT Pro :

MeteoHelix IoT Pro is selected by professionals who require a weather station that combines scientific-grade accuracy, mechanical robustness and operational simplicity. Its double-helix shielding concept provides better natural ventilation and radiation rejection than conventional multi-plate shields, resulting in lower measurement uncertainty and more reliable long-term data in real-world outdoor conditions.

By integrating wireless communication, solar power, WMO-compliant accuracy and an easily serviceable sensor tip into a single compact unit, MeteoHelix IoT Pro offers an efficient and future-proof platform for building modern environmental and IoT monitoring networks.