Davis UV Sensor 6490_weatherspares_co_uk
Davis UV Sensor 6490_weatherspares_co_uk

Davis UV Sensor 6490

Sale
Regular price
£410.00
Sale price
£410.00
Regular price
£425.00
UK VAT included. Shipping calculated at checkout.
Product Details

The sensor measures global solar UV irradiance, the sum of the components of solar UV transmitted directly and those scattered in the atmosphere. Scattered UV is a major portion of global irradiance. The transducer is a semiconductor photodiode that responds only to radiation in the region of interest. 

The diffuser provides an excellent cosine response. With multiple hard-oxide coatings, the interference filter provides the Erythema Action spectral response. It is stable in the presence of heat and humidity. The outer shell shields the sensor from thermal radiation and provides a path for convection cooling of the body, minimising heating of the sensor interior. It provides a cutoff ring for cosine response, a level indicator, and fins to aid in aligning the sensor with the suns rays. Spring-loaded mounting screws, in conjunction with the level indicator, enable rapid and accurate levelling of the sensor. Each sensor is calibrated against a Yankee Environmental Systems Ultraviolet Pyrometer, model UVB-1, in natural summer daylight.

Requires Davis Sensor Shelf if not already purchased to ensure correct installation.

 

Product Warranty

1 year warranty from date of purchase - return to supplier. Batteries are excluded from warranties as they are classed as a consumable item.

See our terms and conditions for full details of our warranty details.

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UK & Channel Islands Tracked Services

  • Economy £4.70 or free on orders over £80 (3 to 5 days). Some smaller items shipped at a reduced rate of £3.60
  • Standard £5.95 (2 to 3 days) for mainland UK. Some smaller items shipped at a reduced rate of £4.10
  • Express £8.95 (1 to 2 days) for mainland UK, for Highland and Islands, Northern Island 2 to 3 working days. Available on orders placed before 11am, please note delivery 'may' include Sundays in some parts of the UK and this service includes a faster order preparation service

Europe & Rest of World Shipping

  • Europe from £8.50 per order
  • Rest of the World from £8.55 per order

International orders may require import duty (VAT/TVA) to be paid before receipt of your goods from your courier. For European Market customers we are registered with the IOSS scheme which means duty will be prepaid on orders under €150

Our full shipping policy can be read here.

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