Davis Instruments Vantage Pro2 Plus with 24-Hr Fan Aspirated Radiation Shield

It's an excellent investment for serious hobbyists, researchers, and agricultural users who need dependable, science-grade data, though the added cost and setup complexity make it overkill for casual weather watchers.

The Davis Instruments Vantage Pro2 Plus with 24 Hour Fan Aspirated Radiation Shield represents one of the most precise and dependable professional-grade weather stations available to serious weather enthusiasts, researchers, agricultural operations, and institutions that demand accuracy above all else. Building on the proven Vantage Pro2 Plus platform, this configuration adds continuously running fan aspiration to the temperature and humidity sensor shield, drawing air across the sensors around the clock rather than relying on passive airflow alone.

This active ventilation dramatically reduces solar radiation error, ensuring that temperature readings reflect true ambient conditions rather than being skewed by sun-heated shield components, a problem that plagues many passively shielded consumer stations especially during calm, sunny conditions. At the heart of the system is the integrated sensor suite (ISS), which combines temperature, humidity, rainfall, wind speed, and wind direction measurements along with the Plus model's added solar radiation and UV sensors into a single outdoor unit.

The fan aspirated shield houses the temperature and humidity probes and uses a quiet, low power fan to maintain constant airflow, which is especially valuable in regions with high solar intensity, light wind, or extreme heat where unventilated radiation shields can introduce several degrees of error. Data is transmitted wirelessly to the console or weather envoy, where users can view real time conditions, track historical trends, and export data for research, farming decisions, or regulatory compliance reporting.

The anemometer and rain collector remain field proven components, known for durability through years of exposure to wind, rain, hail, and temperature extremes. Built from UV resistant, weather hardened materials, the Vantage Pro2 Plus with fan aspirated shield is engineered for long term outdoor installation in harsh climates, from scorching deserts to humid coastal environments. The fan draws minimal power and can be run from solar panels or the station's existing power supply, making it suitable for remote installations without frequent maintenance visits.

Davis Instruments backs the system with a reputation built over decades of reliability in professional meteorology, aviation, agriculture, and scientific monitoring networks, and the fan aspirated upgrade specifically targets users who require NWS and WMO-caliber accuracy for publishing data, running irrigation models, or supporting climate research where even small temperature measurement errors can compound into significant downstream inaccuracies.