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The Best Self Leveling Transit of 2023 – Reviewed and Top Rated

After hours researching and comparing all models on the market, we find out the Best Self Leveling Transit of 2023. Check our ranking below.

2,817 Reviews Scanned

SaleRank No. #1
Johnson Level & Tool 99-027K Self-Leveling Rotary Laser System, 8.75", Red, 1 Kit
  • AREA COVERAGE: This Johnson Rotary Laser Tool is perfect for leveling on largescale areas and jobsites. It has a working diameter of 2000’ and is suitable where a rotary with slope is not required.
  • HIGH QUALITY: The self-level tool features a dustproof and wash down rated housing to offer durability on work sites and in industrial spaces. The robust construction allows easy use for the dustiest outdoor jobs.
  • EASY TO USE: Equipped with a heavy-duty contractor’s tripod; the rotary aligning level kit allows one-person operation for easy use. It is ideal for grading and leveling any jobsite with convenience.
  • HIGH ACCURACY: This laser kit for leveling is designed with a powerful class 3A laser beam. With a red laser for increased visibility; a 90-deg. split beam function helps in vertical and horizontal leveling.
  • PRODUCT SPECIFICATIONS: This Self-Leveling Rotary Laser Kit is equipped with a detector and 13’ grade rod. It comes in a hard-shell carry case for easy carrying and storage.
Rank No. #2
Iglobalbuy Self Leveling Rotary Laser Level System Kit with Surveying Tripod + Aluminum Grade Rod 16.4Ft, Red Beam Automatic Self-leveling Transit Laser Level Grading Rotating Lasers for Construction
  • 【Note: The product will be shipped and delivered separately in 2 packages (one is the laser, the other is the tripod and grade rod, which usually may not arrive at the same time.)】
  • 【Rotary Laser Level Kit】 This rotary laser system kit includes the self-leveling rotary laser, surveying tripod and aluminum grade rod. Surveying tripod with extendable legs, the fully extended height can reach about 65 inch (1.65m); Adjustable aluminum grade rod, five telescopic sections reach up to 16.4ft (5meter) in length.
  • 【High Performance Sensor】 Equipped with 4 remote control light receiving parts, our Iglobalbuy rotary laser level is 360° rotatable and has the function of 5° automatic alignment. IP54 dustproof and waterproof design, it will not cause any problems even in harsh environments.
  • 【Automatic Alignment and Adjustable Speed】 This self-leveling rotary laser level can align automatically. In self-leveling mode, when the laser exceeds the self-leveling range (±5°), the line laser level beeps and the beam flashes quickly. The scanning speed can be adjusted at 0, 60, 120, 300 and 600rpm. For both vertical and horizontal use.
  • 【500m Beam Visibility】 Exterior working range can be up to 500m diameter with detector; Red beam has strong stability, low power consumption and high cost performance. Red beam is more suitable for indoor use.
Rank No. #3
Spectra Precision LL300N-3 Laser Level, Self Leveling Kit with HL450 Receiver, Clamp, 4.7 Meter Grade Rod / Metric and Tripod , Black
  • Increases productivity with faster setups, fewer mechanical parts, and automatic self-leveling
  • Easy, one-button operation requires minimal training for using tool
  • Complete leveling crew with tripod in one portable hard shelled carrying case
  • Rugged design with “hard hat” rotary protection provides superior drop and outdoor weather protection (IP66)
  • Ideal for all general concrete and construction site preparation applications
SaleRank No. #4
DEWALT Rotary Laser Level Kit, Indoor/Outdoor Survey Laser Transit (DW074KD)
  • Horizontal self-leveling automatically aligns the DEWALT laser level to center
  • The laser levels for construction are equipped with leveling vial for manual leveling in vertical mode
  • Protected rotary head and weatherproof design of the level laser deliver interior and exterior jobsite durability
  • Digital laser detector extends interior and exterior range to 600 ft.
  • Standby mode allows the user to pause the laser while transitioning from horizontal to vertical
Rank No. #5
BOSCH REVOLVE900 GRL900-20HVK Exterior 1000ft Range Horizontal/Vertical Self-Leveling Cordless Rotary Laser Kit with Tripod, 8ft Grade Rod and Laser Receiver , Black
  • COMPREHENSIVE KIT: includes GRL900-20HV rotary laser, laser receiver, remote control, head unit case, 8ft. grade rod, wall mount, laser glasses, target card, and hard carrying case
  • MULTIPLE HORIZONTAL APPLICATIONS: use for site preparation, stake-out for pouring concrete foundations/slabs, setting concrete forms for commercial or large residential construction, underground utility work including plumbing and more
  • VERTICAL APPLICATIONS: provides a vertical beam and 90° point for wall layout, framing, windows and door installation, stud framing and more
  • ELECTRONIC SELF-LEVELING: allows for easy setup and use on the job; mount threading is 5/8-11
  • Class 2 laser product, <5mW power output, 635 nm
Rank No. #6
Johnson Level & Tool 99-006K Self Leveling Rotary Laser System Kit, Red, 1 Kit
  • TURNKEY SOLUTION: The 99-006K self-leveling rotary laser system includes a soft carrying case (laser only); a 13’ grade rod; LED one sided detector; a contractor grade tripod; freestanding target; a drop-ceiling bracket; and laser glasses. Dimensions: 6.61" x 4.96" x 6.69"
  • EXTERIOR RESIDENTIAL: Great for leveling forms and footings; aligning fence posts; grading/excavation; or laying out retaining walls; planting beds; and more. Rotation Speeds: 200; 400; 600 RPM. Laser Wavelength: 635nm±10nm (Red)
  • VERTICAL AND HORIZONTAL USE: Use vertically for laying out walls and floors; or installing metal drywall track. Use horizontally to install wainscoting; drop ceilings; or for leveling cabinets. Interior Range- Up to 200 ft. diameter depending upon light conditions. Exterior Range- Up to 800 ft. diameter with detector (included in 40-6516 and 40-6517)
  • COMMERCIAL CONSTRUCTION: Check floor heights prior to pouring concrete or erecting walls. Check survey stake heights; and check alignment with the 90-degree split laser
  • AROUND THE FARM: Perfect for checking drainage slopes; leveling outbuildings; setting fence post alignment and height; and more. Laser rotates at 200; 400 and 600 RPM for versatile use. Working Temperature: 14°-113°F. Center Screw Thread: 5/8"-11
Rank No. #7
BOSCH REVOLVE2000 GRL2000-40HVK Exterior 2000ft Range Horizontal/Vertical Self-Leveling Cordless Rotary Laser Kit with Tripod, 13ft Grade Rod and Laser Receiver,Red
  • COMPREHENSIVE KIT: includes GRL2000-40HV rotary laser, laser receiver, tripod, grade rod, wall mount, remote control, laser glasses, target plate and all-in-one hard carrying case
  • MULTIPLE HORIZONTAL APPLICATIONS: use for site preparation, grading a lot, stake-out for pouring concrete foundations slabs, setting concrete forms for commercial or large residential construction, underground utility work including plumbing and more
  • MULTIPLE HORIZONTAL APPLICATIONS: use for site preparation, grading a lot, stake-out for pouring concrete foundations slabs, setting concrete forms for commercial or large residential construction, underground utility work including plumbing and more
  • MANUAL DUAL SLOPE: allows the user to adjust the slope angle on the laser on both the X- and Y-axes for excavation, drainage and concrete pouring
  • MANUAL DUAL SLOPE: allows the user to adjust the slope angle on the laser on both the X- and Y-axes for excavation, drainage and concrete pouring
Rank No. #8
KEZERS 36X Transit Level,Automatic Level Optical Survey Level,High Precision Auto Level,Self-Leveling Tool for Builders,Waterproof/Height/Distance/Angle Measurement - KL-36X
  • Professional Transit Level for Builders:KEZERS KL-36X automatic optical level featuring a powerful 36X magnification lens and 36mm large aperture,these makes you can easily working with it within a range of 393Ft.The machine offers excellent accuracy of 1/16" at 100Ft with a standard deviation of 1.0 mm per kilometer (double run levelling).
  • Self-Leveling Optical level:This level has a circular bubble with a 90 degree bubble mirror, ±0.5″ auto-leveling, the top sight can quickly align the level bar and correct, the user can adjust the focus knob to quickly focus and start measuring.It is ready to use right out of the box with no assembly needed.
  • Easy to set up and Alignment:Optical levels offer horizontal and vertical crosshairs and lines of sight to assess level, alignment, and distance. The 90-degree prism on the spherical bubble makes setup and alignment quick and simple.
  • Various Measurement Function:The automatic optical level can be used by builders, contractors, engineers, land surveyors, or architects to measure height, distance, and angles. It can be utilized for building homes, installing infrastructure, building roads, making bridge assumptions, building railroads, and building tunnels.
  • Package and Customer Service:You will receive 1 x KEZERS KL-36X Transit Level, 1 x Adjusting Pin, 1 x Hexagonal Wrench, 1 x Plumb Bob, 1 x Hard Carrying Case, 1 x User Manual. If you have any questions after purchase or during using, you can contact with us at any time of 7 x 24. We will solve the problem for you as soon as possible.
Rank No. #9
Stabila Lar 160 G Green Rotation Self-Leveling Laser Set With Tripod & Grade Rod
  • Stabila 04500 LAR 160 G Green Rotation Self-Leveling Laser Kit Interior and Exterior with Tripod & Fully automatic, motor-driven rotation laser – high levelling accuracy of ± 0.1 mm/m, fast self-levelling function within 20 seconds
  • STABILA GREENBEAM technology for improved visibility of the rotating laser beam – green laser beams are four times more visible to the human eye than red beams. Four laser functions for versatile use – horizontal and vertical rotation, plumb-line function and right angle (90°) in vertical operation.
  • Protection class IP 65 – dustproof and waterproof. Shock-absorbent STABILA soft grip casing provides protection against impacts – the stable housing cover also protects the laser optics. Easy to use via three control buttons – on/off, tilt mode, manual mode. Battery drawer – easy replacement, even directly on the tripod.
  • Large working area with REC 160 RG set receiver – up to 600 m in diameter. Two 5/8" threads integrated in the housing. Target plate with magnetic holder and cross-hair. Stable carrying case.
  • Laser class: 2, Output: < 1 mW, Laser wavelength 510 - 530 nm, Self-levelling range +/-5°, Levelling accuracy +/-0.10 mm/m, Diameter of working area for set receiver: 600 m, Operating life: 20 h, Battery type: D, Protection classIP 65, Tripod connection 5/8"
Rank No. #10
Leveling Up: How To Master The Game of Life
  • Amazon Kindle Edition
  • Siu, Eric (Author)
  • English (Publication Language)
  • 224 Pages - 02/24/2021 (Publication Date)
Rank No. #11
Yoga for Grapplers
  • Amazon Prime Video (Video on Demand)
  • Jim Bennitt (Actor)
  • --- (Director) - Yoga International (Producer)
  • English (Playback Language)
  • English (Subtitle)
SaleRank No. #12
AirBags 25L Packable Back-pack, Ultra Lightweight-Day-pack for the Gym, Carry On Back-pack, Water Resistant Foldable-Bag, Traveler Hiking-Gift, Back-pack for Traveling, Outdoor Collapsible Back-pack
  • VERSATILE BACKPACK: The AirBags Backpack is perfect for any occasion, whether it's a day trip, vacation, travel, hiking, camping, gym, cruise ship, or shopping. It's the ultimate all-in-one backpack that makes a great gift for everyone!
  • SPACIOUS 25 LITER CAPACITY: With dual compartments and multiple pockets, this backpack has plenty of room for all your essentials. The breathable and adjustable shoulder straps provide added comfort and support.
  • WATERPROOF AND DURABLE: Made from high-quality rip-stop nylon with reinforced stitching and waterproof TPU zippers, this backpack is built to last and keep your belongings safe and dry.
  • LIGHTWEIGHT AND PACKABLE: When not in use, the backpack can be easily folded into its attached storage bag, making it perfect for travel and saving space.
  • SATISFACTION GUARANTEED: We stand behind our product and offer a 90-day satisfaction guarantee. If you're not completely satisfied with your purchase, we'll make it right.
Rank No. #13
Spectra Precision LL100N-2 Laser Level Kit with HR320 Receiver and Clamp, 15' Grade Rod (Inches), Tripod, and System Case , Yellow
  • Complete leveling crew in a case includes the LL100 laser transmitter, HR320 receiver, C59 rod clamp, 15 ft grade rod in inches, adjustable tripod, system case, alkaline batteries and user guides
  • Fully automatic, self-leveling offers easy, one-button operation requiring minimal training for quick setups
  • Height of Instrument alert stops the laser from rotating when jarred or knocked to avoid erroneous readings
  • Rugged design provides superior drop and outdoor weather protection resulting in reduced downtime
  • HR320 receiver is waterproof and dustproof and easy to use; it stands up to tough job site conditions
Rank No. #14
H-YEEU Professional Survey Level Line Level Red Light Self-Levelling 360° Rotation Level Device with 1.65 m Aluminium Tripod and 5 m Tower, IP54, 500 M Line Level Outdoor Leveling Kit with Receiver
  • 【Premium Material】The level of the kit is made of durable plastic and high-quality metal materials with waterproof IP65 technology and comes with an aluminium tripod that is lightweight and durable. Three fixed tip feet can be easily inserted into the ground to ensure stable operation of the tripod and the mounted equipment when wet.
  • 【360° Rotation Scanning】The outdoor level has a self-levelling alignment function and a 360° rotating module. Accurately aligns your entire working area within a self-levelling range of ±5° and provides variable rotation speeds and scan angles. It comes with safety glasses to protect your eyes and see the clearly in strong sunlight.
  • 【500M Remote Work】The shockproof red beamline level has a measuring range of up to 500 m in diameter. When used in conjunction with a detector, the levelling process is fast and accurate and your work efficiency is improved. Our levelling and tripod kit is shipped in two packages to avoid damage in transport.
  • 【Must Have Tripod】aluminium tripods are ideal for height measurement and level tools. 1.65m swivel level tripod with 5m telescopic pole and compatible with a variety of instrument quick change flat heads with 5/8" x 11 thread so you can easily and safely mount and secure the instrument and store it easily for your different measuring needs.
  • 【Wide Applications】This level kit with tripod is designed for construction, precision measurement applications, ideal for marking, precision frames and wood frames, woodworking, shelves and more. It is widely used in construction, decoration, appliance installation, quality testing and technical monitoring as well as in other industries.
Rank No. #15
Johnson Level & Tool 99-026K Self-Leveling Horizontal Rotary Laser System w/ Hard Case Kit, 50 x 14.5", Red, 1 Kit,Orange
  • ROTARY LASER LEVEL: This Johnson Self Leveling Kit is ideal for one-person application in various indoor and outdoor jobs. Perfect for small jobsites; this rotary tool self-levels in the horizontal plane and levels manually in the vertical plane.
  • SAFETY ALARM: The rotary laser features visual and audible alarms that alert you when the rotary is beyond its leveling range and the locking pendulum that protects the inner pendulum during transportation.
  • APPLICATIONS: This rotary laser may be used to check cut and fill; set foundations and footings; concrete pours; septic tanks and basement excavations; acoustical ceiling and drywall; align and plumb walls; level deck floors; set drainage; terracing; and more.
  • ROTATIONAL SPEEDS: This manual rotary laser with illuminated vertical vial supports variable rotational speeds of 200-600 RPM. A variable RPM allows the user to set the laser to the speed that provides the optimum visibility.
  • PRODUCT SPECIFICATIONS: The kit includes a Laser with 800' working diameter; NiMH rechargeable battery pack; 6V battery charger; detector with clamp and 9V battery; tripod; 13' grade rod; wall/ceiling mounting bracket; magnetic target; tinted glasses; and hard-shell carrying case.
SaleRank No. #16
SKIL 100ft. 360° Green Self-Leveling Cross Line Laser Level with Horizontal and Vertical Lines Rechargeable Lithium Battery with USB Charging Port, Compact Tripod & Carry Bag Included - LL9322G-01
  • PROJECTS UP TO 100 FEET - Laser projects a bright green cross line laser with a 360 horizontal laser that goes all the way around a room
  • SUPERIOR VISIBILITY - The bright green laser lines offer improved visibility for ease of measuring
  • SELF-LEVELING - Laser level automatically levels to cut out any guesswork
  • CONVENIENT CHARGING - The Integrated Rechargeable Lithium-Ion battery has a micro-USB charging port with indicators displaying the battery's life
  • TRIPOD INCLUDED - The adjustable tripod can be raised up to a max height of 3-1/2 ft. and lets you securely position the tool on the floor or a table
SaleRank No. #17
BOSCH Optical Level Kit with 32x Magnification Power Lens, Tripod and Rod GOL 32CK, Grey
  • DURABLE: Features a durable design of plastic with overmold in key impact areas. Also includes all metal housing with IP54 protection making the Bosch GOL 32CK both dust and water resistant.
  • SELF-LEVELING: The optical level is automatic and offers a self-leveling compensator and both horizontal vertical crass hairs and Stadia lines.
  • POWERFUL: Provides extended viewing range with 32x magnification power and a large aperture for a working range of 400-feet.while also offering 1 16-inch accuracy at 100-feet ; Range:Up to 330-feet
  • SECURE: Features transport lock out device to protects compensator during transport and handling, granting this optical level portability from jobsite to jobsite.
  • FUNCTIONALITY: The Bosch GOL 32CK magnetic dampening system quickly settles the system and reduces the effects of jobsite vibration, offering you accurate and precise leveling measurements
Rank No. #18
Automatic Optical Level 32X with Self-Leveling Magnetic Dampened Compensator and Transport Lock, Height/Distance/Angle Measuring Tool 393Ft of 3/10" at 100Ft Leveling Accuracy IP54 Waterproof
  • 【OUTDOOR PROFESSIONAL LEVEL TOOL】With 32X magnification lens and large aperture, the LAL-2-32X Automatic Optical Level allows you to work within a range of 393Ft for sharper image without issues even in low light conditions. The level tool adopted high-speed lens in high quality imaging that ensures accurate measurements. The level offers excellent accuracy of 3/10" at 100Ft and the standard deviation per Km ( double run leveling ) can reach 1.0 mm.
  • 【SELF-LEVELING COMPENSATOR WITH LOCK】The automatic optical level has a self-leveling magnetic damping compensator with transport lock, which can quickly stabilize the system and reduce the effect of vibration on the construction site, providing you with accurate and precise level measurement. The locking device protects the compensator during transport and prolongs its life.
  • 【STURDY AND DURABLE】The optical level also has a metal casing and IP54 protection level, which has good shock resistance, dust resistance and water resistance, and can adapt to the complex working environment of the construction site.
  • 【EASY SET-UP AND ALIGNMENT】This high performance automatic level has three precision leveling screws and a 90 degree prism to quickly align the circular bubble vial to set up the level tool. The solid metal base of the level offers a 5/8" mounting thread to be fixed on a tripod. The top mount quick sight allows for quick sighting of leveling rod. After installation and calibration, users can adjust the focusing knob to quickly focus on and then start measuring.
  • 【WIDE APPLICATION】It is very suitable for construction engineering survey, deformation and settlement monitoring, mining survey, road survey, bridge and tunnel survey, etc.
Rank No. #19
Topcon RL-H5A Self-Leveling Rotary Grade Laser Level
  • MULTI-PURPOSE LASER: Grading, excavating and general construction projects are perfect applications for the RL-H5A. With the IP66 rating, the RL-H5A is "job site tough" and can withstand dust, a sudden shower and even torrential rainfall.
  • EASY TO USE: With electronic self-leveling, you press the power button and go right to work in seconds. If the RL-H5A gets disturbed on the job it relevels itself automatically. The self-leveling motors are accurate to ±10 arc seconds.
  • LONG RANGE WITH HIGH ACCURACY: Need to shoot elevations up to 800 m from your laser? No problem - this instrument has the power and range to cover a 800 m diameter job site.
  • KIT COMPONENTS: includes the RL-H5A laser, LS-80X, Sensor holder and Carry case.
Rank No. #20
VEVOR Automatic Optical Level 24X Optical Auto Level Kit High Precision Height/Distance/Angle Level Measure Builders Level with Magnetic Dampened Compensator and Transport Lock, IP54 Waterproof
  • [ 24X Optical & 40mm Lens ]: With 24X magnification lens and 40 mm large aperture, this automatic optical level is great helpful for you to work even in low light conditions.In addition, it provides excellent accuracy of 1/16-inch within 100 feet distance(max range is 393 ft).
  • [ Self-leveling Compensator and Lock ]: This optical level kit works with a magnetic-dampened compensator, efficiently reduce vibration when measuring,and the lock protects pendulum from damage during transport.
  • [ Easy Set-up and Alignment ]: The circular bubble vial with a 90-degree prism makes sure the set-up and alignment are easy and fast; the 5/8" thread at the bottom can be fixed on a standard tripod. When using it, turn the focus handwheel until the target is clear. If there is a problem, it is possible that the focus is out of order, and the rack and gear detachment (rotating too much force, can also cause de-teeth).
  • [ Comes With Sturdy Case ]: This survey transit level comes with a sturdy carrying case and a plumb line,which makes it easy to be taken anywhere or to be stored for next time use.
  • [ Wide Application ]: Our builders level also features metal housing and IP54 protection for weather resistance,dustproof and features impact resistance,which is ideal to use in Construction engineering survey, deformation and subsidence monitoring, mining survey, etc.

Last update on 2023-08-03 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

How Do You Buy The Best Self Leveling Transit?

Do you get stressed out thinking about shopping for a great Self Leveling Transit? Do doubts keep creeping into your mind? We understand, because we’ve already gone through the whole process of researching Self Leveling Transit, which is why we have assembled a comprehensive list of the greatest Self Leveling Transit available in the current market. We’ve also come up with a list of questions that you probably have yourself.

We’ve done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for Self Leveling Transit that you consider buying. Your questions might include the following:

  • Is it worth buying an Self Leveling Transit?
  • What benefits are there with buying an Self Leveling Transit?
  • What factors deserve consideration when shopping for an effective Self Leveling Transit?
  • Why is it crucial to invest in any Self Leveling Transit, much less the best one?
  • Which Self Leveling Transit are good in the current market?
  • Where can you find information like this about Self Leveling Transit?

We’re convinced that you likely have far more questions than just these regarding Self Leveling Transit, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for Self Leveling Transit, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible Self Leveling Transit. Make sure that you are only using trustworthy and credible websites and sources.

We provide an Self Leveling Transit buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information. How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available Self Leveling Transit currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of Self Leveling Transit has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an Self Leveling Transit?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your Self Leveling Transit.
  5. Customer Ratings: Number ratings grade Self Leveling Transit objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their Self Leveling Transit.
  7. Product Quality: You don’t always get what you pay for with an Self Leveling Transit, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an Self Leveling Transit is should be an indication of how long it will work out for you.

We always remember that maintaining Self Leveling Transit information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding Self Leveling Transit is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly! We’re here for you all the time. Contact us here. Or You can read more about us to see our vision.

FAQ:

Q: What is a transit level used for?

A: A transit level is an optical instrument, or a telescope, complete with a built-in spirit level that is mounted on a tripod. Transit levels are used mainly for surveying and building, but they can be used to determine the relative position of lines and objects as well.

Q: What is Transit Survey?

A: transit survey. [′trans·ət ′sər‚vā] (engineering) A ground surveying method in which a transit instrument is set up at a control point and oriented, and directions and distances to observed points are recorded.

Q: What is a transit tool?

A: A transit or total station is a computer-like tool used in surveying an archaeological site (though architects and civil engineers use them as well). This equipment is used to create a map of the site, using GPS and spatial data which records exact locations and heights of specific points.

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