Sky Brightness Tester

Sky Brightness Tester with Dew Point

Displaying Temperature & Humidity
Displaying Sky Brightness in mag / square arc seconds

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Made in the USA

Available from Holland-Space, LLC, www.holland-space.com

For sale now on eBay under: Sky Brightness Tester

Android App for Sky Brightness Tester:

SBT12f-1Download
Connecting to SBT
Android App – SBT Display

Rubylith Red Filter used over display to preserve astronomer’s night adapted vision.

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