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Description
SIRUI Beyond B1042B-MD Rangefinding Binoculars For Hunting & ObservationAccurate & Quick Beyond Series 10x42 Laser Rangefinding Binoculars B1042B MD GN Green B1042B MD BK Black B1042B MD 10x42 Laser Rangefinding Binoculars 10X High Magnification Accurate Measurement LCD High Transmittance Screen Multi layer Coating IP67 Waterproof 1 4 20 Threaded Hole SIRUI Beyond Series Laser Rangefinding Binoculars features outstanding optical performance and precise distance measurement with the ranging capacity of 1800m. Clear data,
Accurate & Quick
Beyond Series 10x42 Laser Rangefinding Binoculars
B1042B-MD-10x42
Laser Rangefinding Binoculars
10X High Magnification
Accurate Measurement
LCD High Transmittance Screen
Multi-layer Coating
IP67 Waterproof
1/4”-20 Threaded Hole
SIRUI Beyond Series Laser Rangefinding Binoculars features outstanding optical
performance and precise distance measurement with the ranging capacity of 1800m. Clear data, such as
distance and angle is shown on the LED high transmittance screen. And the automatic power off design
helps use less power. Solid built outside and convenient operation binoculars is born for long-distance
observation and accurate measurement, such as hunting, adventure, bird watching, geological prospecting,
building surveying, etc.
Accurate Measurement
Binoculars is designed with ranging capacity of 1800m/2000yd. Besides, the
tested information and what you are watching will come into view at the same time. It also features
fast measurement speed and angle measurement, suitable for long-distance observation and accurate
measurement such as wildlife observation, forestry surveying, building surveying, etc.
Wide Field of View
Field of view (FOV) is the area or range of what can be seen or captured
by a device or sensor. The wider the FOV, the more the set is visible.The FOV of SIRUI B1042B
binoculars is 114.3m@1000m, which means you can see a circular area of 114.3m diameter when the
object is 1000m away. Wide FOV is perfect for capturing moving object.
Field of View
114.3m @1000m
LCD
High Transmittance Screen
High Transmittance Screen
Viewing and measuring at the same time.
1
Distance
2
Straight-line Distance
3
Scan Mode
4
Central Circle
5
Distance Unit
6
Angle
7
Horizontal Distance
*The binoculars measurement can only be used during the day-time because
the display screen is black.
905nm Laser Wavelength
Focus on details such as flagpole, electric wire, golf ball, etc.
Outstanding Optical System
ED glass is usually added to high quality optical products to guarantee
perfect optical performance. So you can get high quality sharp image with well-controlled
dispersion.
ED Glass
Standard Glass
ED Glass
Standard Glass
Almost focus on the same point
Not focus on the same point
Virtually eliminate chromatic aberration
Apparent chromatic aberration
Sharp image with better contrast
Present fringes
BAK4 Prism
BAK4 is a type of high-density glass. BAK4 prisms are made of a higher
quality glass than the lower-cost BK7 prisms that are sometimes used in binoculars. The higher
quality glass used in BAK4 prisms results in a brighter and clearer image, especially suitable for
viewing in low-light situations.
BAK4 Prism
Multi-layer Coating
Multi-layer coating glasses with anti-reflective surface provide higher
light transmittance up to 92.5%.
Lens Protector
Solid quality construction with anti-scratch and anti-fouling coating.
High Magnification
BAK4 prism allows users to view clear images with well-controlled
chromatic aberration and accurate color.
10X Magnification
42mm Large Objective Lens
21mm Eyepiece
6.52° FOV
Wine Red Coating
Wine red coating glasses help reduce reflectivity, suitable for hiding
during military action. It also reduces flare and ghost, delivering clear and sharp image.
Less flare and ghost
Sharp image
Low reflectivity
IP67 Waterproofing
Nitrogen Filling
Nitrogen Filling
Brilliant anti-fogging and waterproof performance in extreme conditions.
Working Temperature: -15°C ~+60°C
Name of Part
Two Colors
*Optional SIRUI SP124+B5X+BA-2 Tripod Kit
*Optional SIRUI SPD04+G5X+BA-2 Tripod Kit
Multiple Scenarios
Protable body for outdoor carrying
Patrol
Power Inspection
Engineering Project
Security and Protection
Geological Prospecting
Hydraulic Engineering
Forestry Surveying
Territorial Surveying and Mapping
Golf Measuring
Distance Measuring
Long-Distance
Observation
Observation
SIRUI Promise to Provide All Customers with
VIP Warranty Service of Optical Products
VIP Warranty Service of Optical Products
1. If the optical element of your product is defective or damaged, we
will provide you with limited free warranty or replace the damaged one. (If we are not able to
repair your product, we will replace it with a product that has the same or better physical
condition.)
2. Two years warranty for electronic part from the date of purchase. And
we will provide you with free repair or replacement. (If we are not able to repair your product, we
will replace it with a product that has the same or better physical condition.)
3. We provide lifetime warranty for factory defective products. If the
product is damaged artificially, you have to pay for the repair. The start date of the warranty is
subject to the proof of purchase. Does not cover loss, theft, deliberate damage, unauthorized
service or cosmetic damage that doesn't hinder performance.
What’s in the Box
1. Colorful Box
2. Laser Rangefinding Binoculars
3. Carrying Bag
4. Lens Cloth
5. Warranty Card
6. Cleaning Bag
7. Battery
8. Eyepiece Protection Cap
9. Objective Lens Protection Cap
10. Strap
Specifications
Name
Beyond Series 10X42 ED Laser Rangefinding Binoculars
Magnification
10X
Eyepiece Diameter (mm/inch)
φ 21 / φ 0.83
Objective Lens Diameter (mm/inch)
φ 42 / φ 1.65
FOV
114.3m@1000m / 342.9ft@1000yd
Exit Pupil Diameter (mm/inch)
φ 4.2 / φ 0.17
Exit Pupil Distance (mm/inch)
15 / 0.59
Light Transmission
92.47% (Left) / 89.49% (Right)
Distortion
5.94%
Relative Brightness
18.06
Twilight Factor
20.49
Laser Wavelength
905nm
Laser Emission Power
＜1 mw
Laser Class
CLASS I
Display Screen
Black LCD High Transmittance Display Screen
Ranging Accuracy
±0.5 m
Angle
±90°
Battery
CR2*1
Maximum Measuring Distance
Building: 1800m / 2000yd
Minimum Measuring Distance
5m
Maximum Focus Distance
∞
Minimum Focus Distance
3m
Interpupillary Adjustment
56~73mm / 2.2~2.87 inch
Diopter Adjustment
＞-5~+5D
Weight (g/lb)
756 / 1.67
Dimensions (mm/inch)
146*111*51 / 5.75*4.37*2.01
Storage Temperature
-15~60℃
Operation Temperature
-10~60℃
Waterproofing
IP67
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
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
4.8 ★★★★★
Based on 23 reviews
Sort
Product Reviews
★★★★★ 5
Amazing!
Format: Kindle, Format: Kindle
This book was phenomenal, I devoured it within a few days! For this being a debut novel, it is fantastic and I would’ve thought the author was a seasoned author. I have zero complaints about this book.
Let me start by saying that the world building was phenomenal. I could picture everything in my head because of how detailed it was — that’s how good it was written. And I absolutely love the “captive/captor” trope so much, it’s become one of my favorite tropes, so I was pleasantly surprised to see that this book had that.
I loved the banter between Rogue and Ara — they’re both snarky and witty, plus with the romantic tension, it made the dialogue that much better. Speaking of romantic tension, yes there is spice but not so much of it that it overrides the plot, which I loved. For me, this would probably be on the 3/5 level of spice.
This book had a ton of plot twists and I thoroughly enjoyed it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 13, 2024
★★★★★ 4
High on Tropes and Satisfaction
Format: Kindle
This is a great Romantasy book full of action, adventure, and everything you look for in this genre.
I won’t lie: it does kinda feel like the author found every common trope from every successful book of this kind and threw them all into this novel. But if it ain’t broke, don’t fix it. Especially in romance, there’s a large audience who has specific expectations, and they want them every time. Nothing wrong with that and many times I’m one of them.
I have no idea what defines a spoiler honestly, so
spoiler alert!!!!!!!
Tropes include:
Only one bed at the inn/bar
Dissatisfaction with life before hunk appears
Lost royalty
The chosen one
Montage of dress up time followed by shocked hunk
Forbidden romance between two from rival peoples
Power that cannot be controlled, simply guided/asked
Gathering intel at the inn/bar
FMC who knows how to fight/use weapons well
There’s probably more but no need to list them all.
Good story and I would recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 14, 2024
★★★★★ 5
Just read it. You won’t regret it.
Format: Hardcover
This book completely blew me away. I loved every single character—not just the FMC and MMC, but the side characters too, which is rare. In a first book, side characters can feel flat while the focus is on world-building, but that definitely wasn’t the case here.
The romantic tension between the FMC and MMC was so good—seriously addictive. The plot itself felt pretty straightforward at first, and the world-building was easy to follow. It even gave me Heartless Hunter / Wolf King vibes… until the last 20 pages.
And wow—those final pages. I usually spot plot twists coming, and I thought this one was going to be predictable, but I was completely wrong. That ending genuinely shocked me—I haven’t had that reaction to a book in a long time.
I’m already counting down to book two (and that teaser chapter? Absolutely brutal).
Just read it. You won’t regret it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026
★★★★★ 4
4 Stars for Now!
Format: Kindle
I DEVOURED this book. I was in a huge slump after reading a horrible series right before this but after 3 pages of this book, I was hooked. I read the whole book in 2 days. I think the author did an amazing job at writing an engaging story with an amazing twist at the end. I know many readers feel betrayed by the twist and find the narrator to be unreliable but I feel that the twist was done in a great unsuspecting way. Though I do feel betrayed, I think there is so much room for redemption in the second book!
The author also did an amazing job at world/character building. She was able to do so without interrupting the story which is one of my huge pet peeves. A lot of authors build by taking breaks in the plot or dialogue which I find choppy and disengaging but this author was able to build in an engaging way. There was some lack of world/character building but I think that was due to keeping reader in the dark. The world, politics, and characters were all very easy to understand.
I found the romance a little lackluster and a bit off-kilter. Some of it was really pushy and rushed which left a bad taste in my mouth. I do hope the author delves deeper into the romance in coming books.
The FMC was a breath of fresh air. She was not whiny or stuck-up like most books. She was never afraid to accept help from others but she was still able to shine with her intelligence. Not once did I think she made a poor decision just for the sake of a plot point. She was really easy to like. The MMC could use some work but I think that will happen more in coming books.
This is a MUST read, my only advice would be to wait until it is a finished series!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 30, 2025
★★★★★ 5
Need book 2 please :-)
Format: Kindle
From the very first chapter, Metal Slinger hooked me and refused to let go.
Set in a brutal, metal-bound world where power is carved from steel and survival depends on strength, strategy, and sheer will, this story follows a young woman forced into a dangerous system where control over metal isn’t just magic — it’s dominance, protection, and rebellion. When she’s pulled into escalating conflict and shifting alliances, she quickly learns that power always comes with a cost.
The magic system is sharp and immersive without being overwhelming. The way metal manipulation is woven into combat and politics makes every confrontation feel cinematic and high-stakes. It’s gritty, tense, and beautifully layered.
The Brynn, our FMC absolutely shines. She’s fierce but not untouchable, resilient without feeling unrealistic. Watching her navigate betrayal, survival, and the slow awakening of her own strength felt earned every step of the way. There’s grit in her fight scenes and vulnerability in her quieter moments that make her deeply human.
And the tension? Immaculate. The chemistry simmers under the surface before sparking into something electric. Every reluctant alliance, every charged interaction, every moment of “are they about to destroy each other or kiss?” had me flying through pages.
The pacing is relentless — no filler, no wasted scenes. Twists land hard. Stakes keep climbing. And that ending? Absolutely feral. The kind that leaves you staring at the wall for a minute before immediately checking when book two releases.
✨ Gritty metal-based magic
⚔️ High-stakes survival
🔥 Slow-burn tension
🖤 Fierce, layered heroine
💥 A finale that HITS (but cliffhanger!)
This is one of those fantasies that reminds you why you fell in love with the genre in the first place. If this is just Book One, I am more than ready to be emotionally wrecked again in the sequel.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 14, 2026
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