Spectrum Technologies, Inc

- UV Meter


Plants can suffer from sunburn; exposure to radiation in the mid-ultraviolet part of the electromagnetic spectrum (UV-B) triggers stress responses, inhibition of photosynthesis and DNA damage. As an initial defense, plants produce and accumulate UV-B-absorbing chemical sunscreens, such as flavonoids and sinapate esters, to block low-dosage UV-B. A UV meter can help detect if your plants are being exposed to high levels of detrimental UV radiation, and to check the effectiveness of UV filtering materials. In general, a UV meter will measure the quantity of light in the 250-400nm range. Specific meters are also available for individual UV ranges. UV-C light (200-280nm) can kill your plants. Fortunately, it is absorbed by ozone in the stratosphere. UV-B light (280-315nm) is harmful as well and can cause plant color to fade. UV-A light can be subdivided into two bands. The 315-380nm band has no effect on plant growth, while the 380-400nm band begins the range for photosynthesis.)

  • Monitor critical UV radiation (250-400 nm) with this handheld meter
  • Determine UV filtering capacity of greenhouse shades and glass barriers
  • Range is 0-200.0 µmol-m-2-s-1 (full sunlight)

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