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Description
KAEMEASU KM-D800H Built-in 450mAh Battery Golfing Range Finder 5-800m Laser Golf RangefinderUsing a high definition optical prism lens with 6x magnification to improve viewing effect and accuracy Multifunctional design, supports distance measurement, two point measurement, horizontal distance, vertical height, angle measurement, speed Measurement, golf distance correction, scan measurement and memory storage Two measurement units are switchable, you can adjust it to M or Yd according to your needs "Integrated" mode directly calculates the
- Using a high-definition optical prism lens with 6x magnification to improve viewing effect and accuracy
- Multifunctional design, supports distance measurement, two-point measurement, horizontal distance, vertical height, angle measurement, speed
- Measurement, golf distance correction, scan measurement and memory storage
- Two measurement units are switchable, you can adjust it to M or Yd according to your needs
- "Integrated" mode directly calculates the angle/slope distance/elevation difference between the target and the measurement point/the horizontal distance between the target and the measurement point
- Scan mode allows continuous measurement of different targets without having to press the measurement button repeatedly
- Two-point height measurement mode will measure two test points respectively to obtain target information and automatically calculate the height difference between the two points
- Speed measurement mode: Calculate the speed of the object to be measured using the distance between two measurements of the object to be measured and the time interval information between measurements
- Golf distance correction mode supports downhill and uphill slopes
- Supports the storage function of ten groups of data
- Widely used in golf, hunting, building construction, forestry survey, hiking, outdoor sports, power detection, etc
Specification:
- Measuring range: 5-800m
- Measurement accuracy: ±0.5m
- Speed measurement range: 20-300km/h
- Speed measurement accuracy: <5km/h
- Laser wavelength: 905±5nm
- Angle measurement range: 0-90°
- Laser safety level: CLASS 1
- Units of measurement: yards (Yd), meters (M)
- Magnification: 6.5X
- Eyepiece aperture: 13mm
- Objective lens aperture: 24mm
- Focusing method: eyepiece focusing
- Ranging mode: support
- All-in-one mode (measure distance and angle, and calculate height and horizontal distance): support
- Scan mode (continuous measurement of distance, angle, height and horizontal distance): support
- Two-point height measurement mode (measure the height difference between two points): support
- Speed measurement mode (measuring the speed of objects): support
- Golf distance correction mode: support
- Memory storage function: 10 groups
- Angle calibration: support
- Mode memory function: support
- Angle switch (slope switch): support
- Flagpole lock-vibration prompt: support
- Working temperature: -20℃~50℃
- Waterproof level: IP54
- Battery model: 450mAh lithium battery
- Size: 100*82*40mm
Package included
- 1 x Laser Rangefinder
- 1 x Charging Cable
- 1 x Strap
- 1 x English User Manual
- 1 x Storage Bag
- 1 x Cleaning Cloth
- Other things not included
Specifications
| Brand | Kaemeasu |
| Color | Black |
| User Manual (Language) | English |
| Gross Weight | 0.280kg |
| Volume Weight | 0.164kg |
| Package Length | 14.000cm |
| Package Width | 9.500cm |
| Package Height | 5.500cm |
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- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
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4.3 ★★★★★
Based on 1346 reviews
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Product Reviews
★★★★★ 5
Don't peek at the next page.
Format: Hardcover
Basically, best practices in game engine architecture, citing a wide array of game engines used by a wide array of top game makers.
Out of a ~1150 page book:
The longest chapter is ~150 pages, on Parallelism and Concurrent Programming.
Rendering Engine is ~100 pages
Collision and Rigid Body Dynamics is ~100 pages
3D Math for Games is ~50 pages
I had hoped for treatments on quaternion camera and for entity component system, but alas, no.
What I did get was still crucial. The most illuminating guidance was in Engine Support Systems (~50 pages) which talked about best Memory Management, and in Game Loop and Real-Time Simulation which talks about ideal orders of operations in a highly efficient game loop.
The first 400 pages of this book are not exclusive to games. A new programmer that wants to do high performance programming can gain a lot from this before it gets into 'primarily' game topics.
My strategy for getting through this whale was to never peek at the next page. I did not read (Character) Animation Systems (~100 pages) or Audio (~100 pages), as I do not need them at this time.
You can certainly damage the book if you don't keep in mind its weight, or if you do that maneuver where you forcibly open it against its spine. I did that and the binding popped off the backing. It's all in one piece, and it's easier to read. It's a big tome.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 6, 2022
★★★★★ 5
The Bible, if it was good
Format: Hardcover
I’m not kidding when I say the first 350 pages of this book are quite literally an entire computer science degree. In fact, many CS majors would learn more about some of these subjects here than in their classes. I’m incredibly impressed with the thoroughness and depth of this absolute tome, and I’ll be far more impressed if the binding is able to hold on to all 1200 pages for the whole time it takes me to read it.
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Reviewed in the United States on October 29, 2024
★★★★★ 5
Imprescindible
Format: Hardcover
Libro esencial para entender aspectos técnicos y completar la formación de los estudios universitarios .
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 15, 2025
★★★★★ 5
good quality
Format: Hardcover, Format: Hardcover
Content is top notch as always. My 5-stars go mainly to reflect print quality of the book. Text is nice and clear, binding is done in proper cloth spine binding as you would expect from hardcover edition. Ordered my book on Feb 5th, 2019 and received it on Feb 11th, 2019. The book feels solid not like to fall apart right away. No issues like those reported for "Real-Time Rendering, 4th Edition" or "Physically Based Rendering: From Theory to Implementation 3rd Edition" or "3D Math Primer for Graphics and Game Development, 2nd Edition". This one is a keeper, so sad some other CG books had to go beacuse of the quality "issues".
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Reviewed in the United States on February 13, 2019
★★★★★ 4
An Invaluable Book
Format: Hardcover, Format: Hardcover
Game Engine Architecture" by Jason Gregory has proven to be a treasure trove of knowledge, especially in the realms of lower-level computer programming and the inner workings of CPUs. The first third of the book, which I have thoroughly enjoyed, dives deep into the intricacies of memory management and concurrent programming. Gregory’s explanations are so lucid and engaging that the complex concepts of memory orders such as relaxed, release, and acquire have become clear to me, showcasing their critical roles in programming.
What is particularly remarkable is how the book's first 400 pages serve not just as a guide to game engine architecture, but also stand on their own as an excellent introduction to computer science. It's a testament to the author's skill in distilling complex material into digestible content that even those without a vested interest in game development would find immense value in.
However, a caveat I must mention is the book's physical heft. Its size and bulk make it somewhat unwieldy, and I learned this the hard way when it fell from my desk. The impact caused the page binding to tear away from the hard cover, which was disappointing considering the book's cost. Nevertheless, with some craftiness involving thick drawing paper and glue, I managed to repair it. If the author adds any more information to the next edition, it'd probably be best to turn this into a 2-3 volume set to manage the size.
Despite this setback, the book remains an invaluable resource. Its depth and clarity are unmatched, making it a worthy addition to any tech enthusiast's library. Just be sure to handle it with care.
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Reviewed in the United States on November 11, 2023
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