Shelyak Sentinel Astronomical Weather Station

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Shelyak Sentinel Astronomical Weather Station
Item # SL-ES0004
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  • The Shelyak Sentinel Weather Station will keep an eye on the weather and trigger an alarm to an emergency close system such as Dome Tracker.
  • Sentinel does a lot more than detecting clouds, rain, or snow. It also measures the wind strength and direction, the ambient temperature, humidity, and sky brightness, and records all of that information into its internal memory.
  • The main Sentinel Weather Station module will automatically heat up if the temperature gets too cold or the humidity rises beyond a certain point, allowing the system to work in very cold or frosty conditions.
  • Included Windows software shows you results in an overview page or as graphs for each of the functions. Data export (with the exception of sky brightness) is compatible with Cloud Sensor I and II.
  • Record frequency can be set so that you can leave your Sentinel running for more than 50 days without a PC connection.


Shelyak Sentinel Astronomical Weather Station

The Shelyak Sentinel Weather Station gives you peace of mind when doing remote astronomical observations or imaging, whether you are operating your backyard telescope from the comfort of your living room or you have an observatory half a world away.

Here are the kinds of tasks the Shelyak Sentinel Weather Station can accomplish:

  • measure cloud coverage
  • detect rain or snow
  • measure wind speed and direction
  • measure ambient temperature
  • measure humidity levels
  • measure sky brightness
  • records all the above data into internal memory

The main components of the Sentinel system include a box and wind sensor that will be set up outside, close to your observatory. The system is powered by a 12V power supply (connected via an included 82-ft (25m) cable), and connects to your PC by a serial cable. A relay (1A, 250V) triggers an alarm or an urgency close system such as Dome Tracker whenever weather parameters fall below a set point.

Since most of the components of the Sentinel Weather Station will be exposed to the elements, Shelyak took great care to make sure they were super-durable. A metal casing protects the station from the most extreme conditions, and if it should rain, snow, or get frosty due to high humidity, the Sentinel will heat up automatically so you can take advantage of all of those crisp, clear nights even though there is snow on the ground.

The autonomous Windows software program will show you all of the data from the various sensors and plot them in a graph that you can transfer to your FTP web site automatically. You can export data in CVS format should you need to import the data to other software programs. Text and binary data files are created continuously. Sentinel software can also export data that is compatible with Cloud Sensor I or Cloud Sensor II. The only sensor output that is not compatible is Sky Brightness.

With the Sentinel software program you can also set:

  • observatory opening maximum levels
  • observatory closure minimum levels
  • record frequency (with a record every 10 minutes, you can leave your Sentinel more than 50 days without a PC connection)
  • FTP link to automatically transfer graphs on your web site

SkyMonitor Software Download

Sentinel firmware can also be updated through the RS232 interface.

Additional Information

Additional Information

Manufacturer Shelyak
Warranty 1 Year Warranty
Included Items

Included Items

  • Sentinel External Module
  • Four “Anti-Bird” Sticks
  • External Module Holder and Hardware
  • External Wind Sensor
  • 25m Cable
  • Interface Module
  • Serial Cable
  • 110-220V 12V Power Supply
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