UPGRADE FOR DAVIS 7714 SHIELD
& 7744 VP2 ASPIRATED SHIELD & SENSOR

The patented Helix will reduce your temperature error in the sun by over 1°C (2°F). 

No power required.

Just plug-in our PTFE shrouded sensor into your VP2 for an immediate benefit.

Sensor is fully protected from the sun and rain by MeteoShield.

Spiral vortex flow sheds rain, snow, dirt & sand to the outside,
keeping your sensor cleaner.

We are not affiliated with Davis Instruments. We are offering Davis weather station user requested improvements/add-ons. 

Replacement sensor with professional grade porous PTFE filter inside the MeteoShield Professional. We are working on bringing you an affordable solar radiation shield kit designed for Davis weather station professional and semi-professional users. Expected release date is set at September 2017.

INDEPENDENT COMPARISON TEST RESULTS

Davis VP2 aspirated user comparison from Italy on a day with calm winds. (summer 2017)

Davis 7714 radiation shield comparison with MeteoShield Professional in France on a day with calm winds. (summer 2017)

MeteoShield Professional naturally aspirated:   

Davis Vantage Pro 2 with day time fan ventilation kit: 

mean T: 75.9°F |  mean min. T: 68.5°F |  mean max. T: 83.1°

mean T: 76.1°F  | mean min. T: 68.5°F  | mean max. T: 83.3°F

MeteoShield Professional naturally aspirated:   

Davis Vantage Pro 2 with day time fan ventilation kit: 

mean T: 24.4°C |  mean min. T: 20.3°C |  mean max. T: 28.4°C

mean T: 24.5°C| mean min. T: 20.3°C| mean max. T: 28.5°C

HELIX TECHNOLOGY - VORTEX FLOW

  • Helical radiation shield is the latest technological advance in multiplate radiation shield design.
  • The spiral air flow pattern inside the shield maximizes ambient air flow around the sensor which is the secret to its superb performance.
  • Provides superior protection of the internal temperature and humidity sensors from the elements and from the unwanted effects of solar radiation on measurement of air temperature.

MORE ACCURATE DURING THE DAY

  • Protects from short & long wave solar radiation
  • Highly accurate in low wind conditions.
  • Equivalent to the best Aspirated Radiation Shields

MORE ACCURATE AT NIGHT

  • Maximum protection from outgoing long-wave radiation
  • Minimizes radiative cooling on clear nights
How a radiation shield works

PATENTED

NATURAL ventilation

PROTECTION NOT ONLY FROM THE SUN

Compared to multi-plate radiation shields (screens), helix also effectively protects internal sensors from water spray and sensor dirt buildup which are the causes of unwanted evaporative cooling and sensor errors. 

EFFECTIVELY PROTECTS YOUR SENSOR FROM:

  • RAIN - angled shape drains water and protects from wind blown rain
  • WATER SPRAY - spiral airflow deflects sea salt spray & road spray from passing cars away from sensor
  • SNOW - shields sensor from blowing snow and ice
  • FREEZING RAIN & FOG - outer louvers catch water particles and deflect them away from the sensor
  • ICING - reduces winter sensor icing from supercooled fog
  • HAIL - impact resistant material shields from hail and flying debris
  • DIRT - steers away dust and dirt from the internal sensor during stormy weather
  • SAND - protects sensor from direct sand & dust impact during dust storms

Illustration: How the helical radiation shield protects your sensor from dirt, sand, ice and rain.

CONSTRUCTION

Constructed of stainless steel frame.

Each twist of the radiation shield is made up of 3 helical (spiral) pieces.

Each louver is made of UV, impact resistant and hydrophobic plastic.