Sky Quality Meter (SQM) - L

CHF 199

Reference SQMM-0003

Disponible en stock chez le fournisseur

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Sky Quality Meter - L (SQM-L) from Unihedron: Measure the Quality of the Night Sky with Accuracy

Visit Sky Quality Meter - L (SQM-L) from Unihedron is a portable device specially designed to measure the brightness of the night sky with great precision. It's ideal for astronomers and astrophotographers thanks to its narrow measuring field and enhanced sensitivity.

Key features

  • Angular sensitivity : The SQM-L is equipped with a lens that reduces the measurement field to an angle of 20° (FWHM), with an HWHM of around 10°, enabling precise, localized measurements.
  • Measuring range : Measures brightness in magnitudes per square arcsecond (mag/arcsec²), with typical values ranging from 16 (very bright sky) to 23 (extremely dark sky).
  • Sensor : Uses a TAOS TSL237S sensor, sensitive only to visible light thanks to a HOYA CM-500 filter that blocks infrared.
  • Display : LCD display showing brightness and temperature (in °C or °F).
  • Measuring time : Fast measurement in approx. 8 seconds, even in dark environments.

Benefits and applications

  • Greater precision : Its narrow field of view makes it possible to assess sky quality in specific areas, such as the zenith or targeted regions.
  • Time tracking : Ideal for monitoring the evolution of light pollution on a given site, enabling long-term follow-up.
  • Ease of use : Lightweight and compact, simply point the device at the zenith and press a button for an accurate measurement.

Scope of delivery

  • Sky Quality Meter - L
  • 9V battery
  • Carrying pouch
  • French manual

In a nutshell

Visit SQM-L is a must-have tool for amateurs and professionals wishing to objectively analyze the quality of the night sky with exceptional precision. Its ease of use, portability and ability to provide local measurements make it the perfect tool for any light pollution study.

No further information available.

Why choose Deep Space Astronomy?

Because astronomy is our passion! Our team of experts is here to guide you in your choice of equipment, from beginner telescopes to the most sophisticated astrophotography equipment.

  • Personalized advice: Take advantage of our expertise to choose the ideal instrument for your needs and budget.
  • A wide choice of products: We offer a rigorous selection of quality equipment from the leading brands on the market.
  • Customized training: Expand your knowledge of astronomy with our online and face-to-face training courses.
  • Responsive after-sales service: We're here to help you make the most of your experience.

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