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Description
Galaxy Audio CM140 Check Mate Sound Pressure Level MeterToday, there is a need to know just how loud your surroundings really are. The CHECK MATES decibel meters are inexpensive tools everybody should own. The Galaxy Audio CM 140 and Galaxy Audio CM 170 meet the same IEC 651 Type 2 standards of SPL meters that cost 5 times as much or more. Windscreen and battery are included with the Galaxy Audio CM 140 and all other CHECK MATE models. The CHECK MATE series SPL (Sound Pressure Level) meters, first
Today, there is a need to know just how loud your surroundings really are. The CHECK MATES decibel meters are inexpensive tools everybody should own. The Galaxy Audio CM-140 and Galaxy Audio CM-170 meet the same IEC 651 Type 2 standards of SPL meters that cost 5 times as much or more. Windscreen and battery are included with the Galaxy Audio CM-140 and all other CHECK MATE models.
The CHECK MATE series SPL (Sound Pressure Level) meters, first introduced in early 2003, allow musicians, sound contractors, and others to measure SPL in decibels (dB). A decibel is defined as the unit for measuring relative loudness of a sound. We have expanded our line from one CHECK MATE SPL Meter to four products in the category. We have sold thousands of units to working musicians, DJs, police departments, sound contractors, racetracks, etc...
- Mini Size
- Low Cost High Performance
- MAX/MIN Function
- Level Range Display
- AC Signal Output
- Resolution 0.1dB
- IEC 651 Type II, ANSI S1.4 Type II
CM-140 SPECIFICATIONS
| Standard | IEC 651 Type 2, ANSI S1.4 Type 2 |
|---|---|
| Microphone | 1/2" Electret Condenser |
| Accuracy (under reference conditions 94dB @1kHz) | ±1.5dB |
| Level Range | Lo: 32 - 80dB Med: 50 - 100dB Hi: 80 - 130dB |
| Frequency Range | 31.5Hz to 8kHz |
| Frequency Weighting | A/C |
| Time Weighting | Fast, Slow |
| Auxiliary Outputs | AC Signal Output, 1 Vrms at FS (Full Scale) (FS: Means the upper limit of each level range.) |
| Dynamic Range | 50dB |
| Display | Liquid Crystal Display |
| Digital Display | Digits: 4 Resolution: 0.1dB Update: 0.5 sec. |
| Alarm Function | Over, Under |
| Power Supplied By | One 9V battery (included), 006P or IEC 6F22 or NEDA 1604 |
| Battery Life | Approximately 70 Hours (Alkaline) |
| Operation Temp. | 0°C to 40°C (32°F to 104°F) (<80% R.H.) |
| Storage Temp. | -10°C to 60°C (14°F to 140°F) (<70% R.H.) |
| Dimensions | 9.1" x 2.1" x 1.3" (232 x 54 x 34 mm) (HxWxD) |
| Weight (without batteries) | 7.06 oz (200 g) |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 15 reviews
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Product Reviews
★★★★★ 5
Very Good Godot Book
Format: Paperback
Great book overall!
Best suited for beginners as it literally begins by conceptually introducing variables, operators, etc. Still, it's very Godot. And nicely up-to-date as well, focusing on Godot 4.x and GDScript 2. Note though that the book only covers 2D, which is a shame. Hopefuly, the author is hard at work on a text thast starts where this one ends and moves on to explore 3D in Godot.
The illustrations are little muddy, but fortunately, Packt offers free downloads of (much crisper) PDFs with proof of purchase.
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Reviewed in the United States on May 25, 2024
★★★★★ 5
Book Review: "Learning GDScript with Godot 4
Format: Kindle, Format: Kindle
Learning GDScript with Godot 4" is an invaluable resource for both beginners and those looking to solidify their understanding of Godot's scripting language. This comprehensive guide takes you from the very basics to creating portfolio-worthy projects, making it a perfect starting point for aspiring game developers.
One of the book's standout features is its in-depth approach. It covers the fundamentals thoroughly, ensuring that readers build a strong foundation in GDScript. The inclusion of numerous code examples is particularly beneficial, providing practical insights into how to implement various features and mechanics within Godot 4.
Visual learners will appreciate the thoughtfully placed pictures throughout the book. While not overly abundant, these visuals effectively complement the text, helping to clarify complex concepts and enhance understanding.
Despite Godot's increasing support for C#, the focus on GDScript in this book is well-justified. GDScript is tightly integrated with Godot, making it an excellent choice for rapid development and learning. The book's code-centric approach ensures that readers gain hands-on experience, which is crucial for mastering any programming language.
Overall, "Learning GDScript with Godot 4" is an excellent resource for anyone looking to learn or deepen their knowledge of GDScript and Godot 4. Its thorough coverage, practical examples, and supportive visuals make it a must-have for your game development library. Whether you're a complete beginner or looking to fill in gaps in your knowledge, this book will guide you every step of the way.
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Reviewed in the United States on May 28, 2024
★★★★★ 5
An Excellent Introduction to Game Programming using GDScript/Godot
Format: Paperback
You’ll get up and going quickly with an overview of Godot and then jump straight into GDScript by learning about variables, control flow, collections, loops, object-oriented programming, and concepts like DRY, KISS, etc. Then the fun begins by building game mechanics while learning specifics of Godot such as the node/scene system, reusing scenes, cameras, collision detection, creating user interfaces, and more.
It also covers local multiplayer where you'll learn the basics of computer networking followed by learning about built-in multiplayer nodes provided by Godot. The final chapters cover some advanced programming patterns like event bus, object pooling, and state machines. By the end, you’ll have a fully playable single/local multiplayer game in the style of Vampire Survivors!
I thoroughly enjoyed my time with this book and highly recommend it for anyone who wants to get started on their journey to learn programming and even for experienced game programmers who want to learn Godot and GDScript.
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Reviewed in the United States on May 19, 2024
★★★★★ 4
Fine so far.
Format: Paperback
I am looking for some of the code from exercises, but can't find it in the project files, and they say don't copy it from the ebook...?
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Reviewed in the United States on November 17, 2024
★★★★★ 5
Very comprehensive and approachable
Format: Kindle
This e-book covers everything starting from basic general programming concepts and Godot development, going into (relatively) advanced game development programming patterns that are used throughout the industry. It explains not only what the best practices are but why they are used in a simple and understandable way, and provides points of reflection and knowledge testing with quiz sections.
I highly recommend this book for anyone wanting to learn game development as a hobby, anyone interested in learning Godot, and even for anyone trying to learn game programming in general and wanted a simple place to start.
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Reviewed in the United States on June 11, 2024