惯性聚合 高效追踪和阅读你感兴趣的博客、新闻、科技资讯
阅读原文 在惯性聚合中打开

推荐订阅源

博客园 - 司徒正美
aimingoo的专栏
aimingoo的专栏
MongoDB | Blog
MongoDB | Blog
云风的 BLOG
云风的 BLOG
OSCHINA 社区最新新闻
OSCHINA 社区最新新闻
酷 壳 – CoolShell
酷 壳 – CoolShell
博客园 - 聂微东
Y
Y Combinator Blog
T
Tailwind CSS Blog
奇客Solidot–传递最新科技情报
奇客Solidot–传递最新科技情报
S
SegmentFault 最新的问题
让小产品的独立变现更简单 - ezindie.com
让小产品的独立变现更简单 - ezindie.com
博客园 - 【当耐特】
IntelliJ IDEA : IntelliJ IDEA – the Leading IDE for Professional Development in Java and Kotlin | The JetBrains Blog
IntelliJ IDEA : IntelliJ IDEA – the Leading IDE for Professional Development in Java and Kotlin | The JetBrains Blog
J
Java Code Geeks
美团技术团队
Google DeepMind News
Google DeepMind News
博客园_首页
Apple Machine Learning Research
Apple Machine Learning Research
T
The Blog of Author Tim Ferriss

Latest Content - Popular Mechanics

The 7 Best Shop Vacs for Tackling Tough Messes Three Men Built a Homemade Lifeboat to Escape Alcatraz—and Set Off the Wildest Prison Break in U.S. History I’ve Been Testing Ergonomic Keyboards for Months. This Is How I Got Comfortable Without Slowing Down. The Best Paper Shredders Destroy Sensitive Documents in Seconds Scientists Just Found a Massive Untapped Reserve of Energy. It Could Help Power Our Future. Scientists Just Solved an 80-Year-Old Cosmic Mystery Archaeologists Were Examining a Tomb—and Found a 2,300-Year-Old Bottle of Beer Some People Are Trapped Inside Their Bodies. A Hidden Form of Consciousness Is to Blame. Skil 15-Amp 10-Inch Portable Table Saw Review: Pro-Level Stability and Cutting Power, DIY Price and Ease of Use I Study the Universe. Everything Scientists Know About Dark Energy—And the End of the World—Could Be Wrong. The 9 Best Cordless Leaf Blowers for Cleanups, Yard Work, and Other Small Jobs Qi2.2 Wireless Charging Is Coming to Phones and Battery Packs Everywhere… What Does It Do, Anyway? The 6 Best Electric Pressure Washers for Seasonal Clean-Ups Air Conditioners Are Up to 69% Off Ahead of Summer at Amazon, Lowe’s, and Wayfair America Tested a Massive New Weapon. Then a Nuclear Nightmare Started Falling From the Sky. The 9 Best Lawn Mowers, Based on Decades of Testing and Experience He Suffered a Traumatic Brain Injury—and Woke Up a Mathematical Genius Scientists Think They Just Accidentally Proved String Theory Scientists Found the Biggest Factor in How Long You’ll Live. There’s Not Much You Can Do About It. Mysterious Jars Sat in a Field for Centuries. Archaeologists Finally Looked Inside One. Our Favorite Robot Vacuum Is Over 30% Off Right Now, Thanks to Amazon’s Memorial Day Sale Makita BO5030K Random Orbital Sander Review: Aggressive Performance, but Comfortable in Hand We Asked a Professional Field Maintenance Team What It’s Like to Prepare for the FIFA World Cup After 96 Years, Archaeologists Finally Found the Missing Part of a Legendary Statue Scientists Solved the 150 Year-Old Mystery of Why Most of Your Molecules Are Right-Handed After 96 Years, Archaeologists Finally Found the Missing Part of a Legendary Statue Archaeologists Found a Mysterious Secret Chamber Beneath a 12th-Century Castle 5 Best Water Coolers That Are Worth the Investment A Physical Warp Drive Was Supposed to Be Impossible. Then These Scientists Found a Loophole. Massive 747s Ruled the Skies—And Then One Crashed Into a Mountain Workers Were Building a Highway—and Discovered an Ancient Temple Buried by a Flood A Scientist Tried to Breed Hybrid Super Bees. Some Escaped and Spawned a Killer. Are You Right-Handed? Scientists Just Figured Out Why. Scientists Discovered A Population Developed a Genetic Superpower—Thanks to Potatoes Vortex Triumph HD Binoculars Review: A Great Everyday Pair or Reliable Backup A Plane Went Completely Silent at 26,000 Feet, With Nobody Responding. Why Did It Just Keep Flying for Hours? Marshall’s New Hendrix-Themed Speaker Blends Vintage Style and Big Sound Scientists Discovered a Mutation in Our Genes from an Ancient Species Archaeologists Found a 6,300-Year-Old Megatlithic Tomb That’s Rewriting History Scientists Are Building Artificial Brains from Living Cells Humanity May Reach Singularity Within Just 4 Years, Trend Shows The 8 Best Photo Scanners for Digitizing Your Collection The Motorola Razr Fold Does What Other Folding Phones Don’t An Airliner Was Falling Out of the Sky With No Way to Steer. Then the Pilots Tried Something Unthinkable. Bird and Human Faces Share the Same Genetic Blueprint. Why Do They Look So Different? Tineco Pure One Station 5 Pro Cordless Vacuum Review: Cleaning Doesn’t Get More Automated Than This The 7 Best Slim Wallets to Keep Necessities Secure Scientists May Have Found the Blueprint of the Human Body at the Bottom of the Ocean They Remember Every Moment of Their Lives. Scientists May Have Just Figured Out Why. Archaeologists Found Material Worth More Than Gold in an Ancient Burial Scientists Created a Subatomic Particle That Defies Our Understanding of Physics Jackery Power Stations Are Up to 53% Off for Memorial Day, Including Editor-Tested Backup Picks Lowe’s Memorial Day Sale 2026: Save up to 50% on Grills, Fire Pits, Power Tools, and More Save Nearly 50% on Samsung, Roku, TCL, and Hisense TVs Ahead of Memorial Day Weekend DeWalt Memorial Day Sale 2026: Get Up to 61% Off on Tools We Actually Recommend Memorial Day Pressure Washer Deals 2026: Find Top Models For Up To 50% Off The Best U-Shaped Window ACs for Quiet Cooling Are Marked Down Up to 53% Off for Memorial Day I Found Some of the Best Lawn Mower Deals for Memorial Day— Get Up to 30% Off The Best Editor-Tested Models EcoFlow Portable Power Stations Are Up to 36% Off Ahead of Memorial Day Coolers and Gear Are Slashed by Nearly 35%—This is the Yeti Memorial Day Sale You’ve Been Waiting For Saatva Memorial Day 2026: Save Over $1,000 On Editor-Recommended Mattresses The Key to Winning the Hypersonic Arms Race Is Right Beneath Your Feet. It’s—Mud? Dark Matter May Be Evidence That Our Universe Is a Simulation Scientists Hunted Down the Psychedelic Key to Slow Aging—and It’s Inside This Magic Mushroom REI Anniversary Sale 2026: Shop Deals on Gear Our Editors Actually Use John Deere 370RS Review: You Can Power This Zero-Turn Mower and Ego Tools With the Same Batteries Foldable Pools Are The Summer Upgrade Families Did Not Know They Needed Toro’s Titan Max MyRide Zero-Turn Mower Saved My Aching Back This Scientist Says Nothing in the Universe Is Truly Random. Not Even the Bad Days in Your Life. This Bosch Miter Saw Raised the Bar, And Still Nothing Else Matches It Tapo RV30 Max Plus Review: The Best Value You Can Get in a Robot Vacuum Scientists Think Neanderthals May Have Been Practicing Dentistry 60,000 Years Ago No One Had Seen the ‘Holy Grail’ Scroll in 123 Years. Then This Woman Accidentally Opened the Wrong Box. The 7 Best Hedge Trimmers for Managing Shrubs and Bushes The 8 Best Fireproof Home Safes Protect Your Valuables from Extreme Heat A Crumpled Note Hidden in a Dress Became One of the World’s Most Elusive Codes. Then a Tiny Clue Solved It. The 8 Best Air Purifiers for Your Home The 7 Best Hot Tubs That You Can Buy Online A Runaway Train With Toxic Cargo Was Barreling Toward Disaster. Then, Two Men Had a Crazy Idea to Catch It. A Father and Daughter Went Fishing—and Accidentally Discovered a 151-Year-Old Shipwreck Archaeologists Just Can't Stop Finding Viking Hoards Antarctica Is Hiding a Terrifying Secret. It Could Put the World at Risk. Scientists Found a New Type of Crystal Formed by the World’s First Nuclear Explosion A Metal Detectorist Was Scanning a Field—and Found a 2,500-Year-Old Bronze Age Hoard Echo 21-Inch Cordless Push Mower Tested: You’ll Get Plenty of Power for the Right Price The Makita 5377 Magnesium Hypoid Saw Makes a Compelling Case for Going Corded GE Profile Opal 2.0 Ultra Nugget Ice Maker Review: Reliability and Steady Supply Made Me Ditch My Freezer Ice Trays Ancient Vessels in Pompeii Have Baffled Scientists For Years. They're Finally Revealing Their Secrets. Dyson’s V15 Detect Was the First Vacuum With Laser Dust Detection–And I Still Recommend It 5 Years Later An Ancient Tomb Held Anonymous Bodies for 2,300 Years. Turns Out They’re Famous Royals. These Men Thought They Were Digging a Tunnel. They Were Really Digging Their Own Graves. The SunBrite Veranda 4 Trades QLED Brightness for RGB Color Archaeologists Just Uncovered an Ancient Road Hidden Underneath a Modern City Scientists Might Have a Unified Theory of Everything. It’s Hiding Inside a ‘Qbox.’ Water Alters Your Consciousness, Research Suggests—And Can Induce a Trance-Like State Scientists Found a Way to Make Old Blood Young Again Archaeologists Found 3,000-Year-Old Footprints Carved in Stone She Died During Routine Surgery. Scientists Think Her Brain Simulated ‘Heaven’—But Is That the Whole Story? Ego 56-Volt 22-Inch Self-Propelled Lawn Mower Review: Better Than “Good for Electric,” It Cuts Like a Premium Gas Model These Editor-Loved Coolers Give Yeti a Run for Its Money
The 8 Best Laser Levels for Tiling and Mounting Projects
2026-05-23 · via Latest Content - Popular Mechanics

GLL50-20G 50-Foot Green-Beam Self-Leveling Cross-Line Laser

Pros

  • Bright green beam is easy to see
  • Includes adjustable magnetic mount and tripod threads
  • Attaches to tool belt with carrying pouch

Cons

  • No 360-degree capability

This Bosch laser level is a great all-around option for those who need a reliable, high-quality tool and don’t want to spend much over $100. The controls are extremely simple to use: Simply push the control slider to the “on” position, and the crosshairs pop up on your wall—no other switches, buttons, or indicator lights to worry about.

The tool's magnetic mount, combined with its self-leveling mechanism and optional tripod threads, helps you easily position the beam exactly where you want it. The soft-sided storage pouch attaches to your tool belt using a velcro loop, and the internal pendulum lock reduces the chances of damage to its components in transit.

The laser doesn't display in all directions, but it's the only quibble associated with this excellent level. I’ve been using Bosch tools for years, and this one demonstrates the brand's commitment to precision and overall build quality.

Key Specs

ColorGreen
BeamCross-line
Weight12.3 oz

On Sale

Self-Leveling 360 Cross-Line Laser Level

Now 22% Off

Credit: Alex Rennie

Pros

  • Convenient internal rechargeable battery
  • Includes tripod for easy positioning

Cons

  • Lacks outdoor visibility of green beam options

Using an internal rechargeable lithium battery and micro-USB charging port, this laser level eliminates the need for inconvenient and expensive-to-replace batteries. And for a higher-end, 360-degree option, it's pretty affordable.

The level's red beam maintains visibility up to 65 feet away, which covers the majority of residential rooms. If you're working on a large home project, this model will save you the trouble of constantly repositioning it.

To add even more bang for your buck, the level comes with its own adjustable tripod, a feature that you won’t typically find in similar products.

Key Specs

ColorRed
Beam360-degree cross-line
Weight15.5 oz

Advertisement - Continue Reading Below

On Sale

Line Laser Level

Now 25% Off

Pros

  • Dense rubber housing protects internal components
  • Magnetic pivoting base is easy to use
  • 50-foot visibility range

Cons

  • Heavy compared to other options

Designed with maximum durability in mind, this robust laser level from DeWalt stands up well to frequent, heavy-duty use. The laser sits behind a protective rubber housing, which not only protects it from drops and falls, but also prevents accidental scratches or scuffs during normal use.

In addition to the IP54 designation that protects the level from some dust and water damage, this model also has a one-meter drop rating. DeWalt’s three-year limited warranty has you covered if any issues arise. For even more protection, the entire unit fits inside a hard-sided case for safe transport and storage.

While it's on the heavier side for a laser level, it's still very easy to use, and the self-leveling laser beam flashes until it’s in a level position. For even more mounting functionality, the unit pivots freely when mounted to a metal stud thanks to its magnetic base.

Key Specs

ColorRed
BeamCross-line
Weight3.6 lb

3D Green Beam Self-Leveling Laser With Case

Now 10% Off

Pros

  • Easy-to-see laser
  • Battery level indicator
  • Manual line-lock feature

Cons

  • Cumbersome to carry

This Huepar level provides 360-degree coverage—one horizontal beam and two vertical—at an impressively low price.

In addition to the self-leveling feature, this level also gives you the ability to lock the laser in any orientation you like, which is useful for working with slopes and angles, like installing handrails on staircases.

The level mounts conveniently to metal objects in your workspace thanks to its L-shaped magnetic bracket and also attaches via built-in mounting threads to tripods or pole attachments. The internal rechargeable Li-ion battery has an impressive 6,600 milliampere-hour (mAh) capacity.

It's a bulky device that isn't always the easiest to carry or transport, but the foam-lined storage case has compartments for organizing each of the components, reducing the chances of misplacing any pieces.

Key Specs

ColorGreen
Beam360 degree cross-line
Weight3.89 lb

Advertisement - Continue Reading Below

GLL50-20 Self-Leveling Cross-Line Laser

Now 14% Off

Pros

  • Self-levels for hassle-free calibration
  • Ideal choice for use within 30 feet of work surface
  • Extremely easy to operate

Cons

  • Limited range decreases functionality

If you’re looking for an affordable, easy-to-use laser level for indoor, preferably single-room use, you can’t go wrong with this Bosch option. It’s accurate within 5/16 inches as long as you’re within 30 feet, which should be more than enough for most residential, close-quarters projects.

You’re also getting magnetic and threaded mounting options (although you’ll need to supply your own tripod), and the 2xAA battery power source should be pretty convenient for anyone to have on hand.

The protective design is also rated IP55, which means the level’s internal components are protected from water and dust, and the 12.3-ounce weight makes it one of the lighter options on our list.

Key Specs

ColorRed
BeamCross-line
Weight12.3 oz

GPL100-50G Green-Beam Self-Leveling Alignment Laser

Pros

  • Provides both level and plumb alignment laser dots
  • Rotating magnetic mount provides 360-degree positioning
  • Includes necessary AA batteries

Cons

  • Lacks a traditional continuous line

Unlike typical laser levels that provide a continuous line across the surface being measured, this Bosch model projects single dots on five points of reference.

This design accurately determines precise level and plumb points across a space—as opposed to general vertical or horizontal alignment. This level of accuracy is essential for tasks that require you to mark exact spots, like transferring points from wall to wall or ceiling to floor, and pinpointing 90 degrees.

It also has a rotating magnetic mount, which makes it a good choice if you're working in an environment with a lot of metal surfaces, such as metal framing studs, structural columns, or even metal fence posts.

Key Specs

ColorGreen
BeamDot
Weight12.3 oz

Advertisement - Continue Reading Below

18V 360-Degree Three-Plane Laser Level

Credit: Trevor Raab

Pros

  • Projects a three-way, 360-degree beam that’s easily visible
  • Runs on 18V battery platform
  • Comes with magnetic mount for hands-free operation

Cons

  • Might exceed the needs of the average DIYer

The GLL330 from Bosch is solid and compact, giving it a great deal of stability and maneuverability. The standout feature here is the 18V battery upgrade for longer run time. Standard batteries are generally fine, but they tend to go bad during long periods of tool inactivity (or worse, they die out in the middle of a project). Integrating this laser into the Bosch 18V battery platform goes a long way toward preventing potential headaches.

Another noteworthy feature is the lateral adjustment knob, which helps dial in the stability of the laser. Some customer reviews noted that the line grew thicker the further the laser was placed from a given work area, but that was not my experience using this level.

If it has any faults, it’s simply that it might be more than some users might need. This laser is a significant upgrade from the two-directional units the average DIY enthusiast is probably familiar with, so it may take some getting used to.

Key Specs

ColorGreen
Beam3 x 360
Weight4.2 lb (with battery)

dewalt 20v max xr remote control 360 degree line laser kit

laser level tool mounted on a wall

dewalt 20v max xr remote control 360 degree line laser kit

laser level tool mounted on a wall

Pros

  • Large, 260-foot visible beam range
  • Up to 9 hours of continuous run time on a single charge
  • Remote control speeds up layouts and installations
  • Motorized tracking system enables remote adjustments

Cons

  • May be more than the average homeowner needs
  • Weight distribution can be a challenge

If you’re looking for a complete laser level system to rival those geared toward commercial applications, DeWalt’s latest upgrade is a game-changer. While it is a bit on the heavier side in terms of both weight and price, it’s a feature-rich tool that is surprisingly easy to operate.

The laser throws beams in three different ways, each of which is easy to access at the push of a button. Alternatively, all three beams can run simultaneously, and each spans 360 degrees. Its average continuous run time on a 2aH battery is around 9 hours.

But the best feature of note here is the mounting system that works in tandem with the unit’s remote control. The magnetic mount houses a motorized tracking system, so you can make adjustments both vertically and horizontally from afar.

Key Specs

ColorGreen
Beam3 x 360
Weight4.6 lb (with battery)

Advertisement - Continue Reading Below

What to Consider

dewalt laser lavel

Trevor Raab

Type

Cross-Line: Standard cross-line models are the most common type of laser level, projecting one vertical and one horizontal, forward-facing beam. For the majority of basic tasks—like mounting cabinetry, hanging a painting, or laying tile—a cross-line laser accomplishes everything you need. The Bosch Green Beam Self-Leveling Laser excels in this category, offering precise alignment and Bosch's high-quality construction.

Floor Line: These are specifically designed for tile work and sit on the floor or mount to the wall to create the required 90- or 45-degree angles.

360-Degree: For projects that span an entire room or space, like installing a chair rail or wainscoting, go with a 360-degree laser level. These models project their horizontal beam (and sometimes a vertical beam as well) 360 degrees around the room, instead of limiting the beam to the area in front of the unit. While these are typically more expensive than other types of levels, more budget-friendly options, like the Huepar 3D Green Beam Self-Leveling Laser, are also available.

Dot Lasers: Rather than continuous lines, dot lasers project single points, ideal for point-to-point transfer applications like installing lights and marking exact locations. Their vertical dots essentially replace traditional plumb bobs that serve the same purpose and offer increased visibility. It's typically easier to see a dot than a thin line.

Accuracy

Most laser levels are self-leveling, using an internal pendulum and magnet mechanism to indicate when the beam is completely level (and blinks to indicate it's not level yet). The accuracy of these mechanisms varies from one laser to another, especially as you increase the distance between it and the measuring surface. Because of this variance, keep your measuring distance in mind when choosing a level.

Laser Color

Laser levels have either green or red lasers. While red lasers are the most common—and the most affordable—green lasers provide superior visibility—especially outside in the sunlight—which helps with long-range and exterior use. Green lasers are more expensive to manufacture because they require additional components and more energy than red lasers in order to generate their green color.

Visibility

The range of the beam also affects a laser level’s overall visibility, and all laser levels provide a maximum distance at which the beam is still effective. In my experience, these estimates should be taken with a grain of salt—personal eyesight, light exposure, and surface material also affect visibility. If you’re on the fence about two products, and plan on working in a large space, consider the range metric a useful tiebreaker.

Durability

If you'll use your level outside or in a dusty work area, choose one with an ingress protection (IP) rating. These ratings use a number system to specify the amount of protection against dust (the first digit) and water (the second digit). The maximum for each digit is six and nine, respectively. For example, according to the IP rating chart, an IP54 rating means that your laser level is “dust protected” and can resist “splashing water” from any direction without any harmful effects.

Features like protective rubber corners and hard-sided storage cases also help to keep your laser intact in the event of a drop. The DeWalt Line Laser Level, our choice for “Most Durable” model, is well-suited to this category as well, with a thick rubber exterior and IP54 rating.

Mounting

a laser level mount on a piece of wood

Alex Rennie

It's important to keep your laser level stable and secure during use, so look for options that also offer useful mounting accessories. Some come with a small tripod (compatible levels like the Skil Self-Leveling Cross-Line Laser have a threaded mount to screw right into) or a clamp for attaching to the edge of a table or ladder. Larger, more heavy-duty levels, like the DeWalt Line Laser Level, are commonly designed with an attached magnet that conveniently mounts to metal studs when framing.

Headshot of Paul Smith

Paul Russell Smith is a former NYC ironworker turned screenwriter (Grace Point) and home renovation specialist. He lives in a crooked old farmhouse in Stockton, NJ, where he’s just as likely to be clearing a clogged pipe as rewriting a third act. When he’s not working, he enjoys hiking, pedestrian beer, and cooking over a live fire. His self-proclaimed spirit animal is the English Bulldog.

Headshot of Alex Rennie

Alex Rennie is a freelance writer who specializes in the Home Improvement, DIY, and Tool space. As a former residential and commercial carpenter, Alex uses his hands-on experience to write practical buying guides, how-to articles, and product reviews. His work has also appeared in Business Insider's Insider Picks, and before his writing career, he was a full-time carpenter living in New York City. There, he worked as part of a team designing, building, and installing large furniture pieces, as well as performing a variety of home repair and maintenance projects. Alex currently lives in Los Angeles, CA, and spends his free time exploring the beaches and mountains with his fiancé and their dog Louie.

Headshot of John Gilpatrick

John Gilpatrick is a Senior Reviews Editor for Popular Mechanics, covering tools, home appliances, yard and garden accessories, and smart home tech. He previously worked for Men’s Health and has bylines on numerous other websites, covering topics as disparate as nutrition, tech, and pet care. He is also a former film critic who’s unusually fond of the Star Wars prequels, and he appeared on Pop Culture Jeopardy in 2025 while wearing jorts and a fanny pack. He is a member of the Online Film Critics Society (OFCS).