20 Best 1000 Yard Rangefinder [2024]

Are you looking for the best 1000 yard rangefinder? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling 1000 yard rangefinder.

We Recommended:

# Preview Product
1 Vortex Optics Impact 1000 Yard Laser Rangefinder Vortex Optics Impact 1000 Yard Laser Rangefinder
2 REVASRI Hunting Laser Rangefinder with Rechargeable Battery 1000 Yards Hunting Range Finder with... REVASRI Hunting Laser Rangefinder with Rechargeable Battery 1000 Yards Hunting Range Finder with...
3 Halo Optics Z1000 6X Magnification Accurate Precise Water-Resistant Ergonomic Non-Slip Grip Portable... Halo Optics Z1000 6X Magnification Accurate Precise Water-Resistant Ergonomic Non-Slip Grip...
4 Nikon Prostaff 1000 Laser Rangefinder - 16664 Bundle with 3 CR2 Batteries and Lumintrail Lens Cloth Nikon Prostaff 1000 Laser Rangefinder - 16664 Bundle with 3 CR2 Batteries and Lumintrail Lens Cloth
5 LaserWorks Range Finder for Hunter, IPX 5 Waterproof True 1000 Yards to Trees Shooting Laser... LaserWorks Range Finder for Hunter, IPX 5 Waterproof True 1000 Yards to Trees Shooting Laser...
6 Anyork Hunting Rangefinder with Rechargeable Battery, 1000 Yards Laser Range Finder for Bow Hunting,... Anyork Hunting Rangefinder with Rechargeable Battery, 1000 Yards Laser Range Finder for Bow...
7 Upside Golf LOCKON Golfing RangeFinder with Magnetic Golf Cart Mount – Dual Mode – Pin Vibration... Upside Golf LOCKON Golfing RangeFinder with Magnetic Golf Cart Mount – Dual Mode – Pin...
8 Laser Golf/Hunting Range Finder with Pinsensor 650/1000/1500 Yards Laser Distance Finder with 7X... Laser Golf/Hunting Range Finder with Pinsensor 650/1000/1500 Yards Laser Distance Finder with 7X...
9 Callaway Golf Laser Rangefinders Callaway Golf Laser Rangefinders
10 Sig Sauer SOK10001 Kilo1000 Laser Range Finding Monocular, 5X20MM, HT, Black, One Size Sig Sauer SOK10001 Kilo1000 Laser Range Finding Monocular, 5X20MM, HT, Black, One Size
11 theOpticGuru ATN MossyOak ABL (Auxiliary Ballistic Laser) Laser Rangefinder Quick to Attach, Smart... theOpticGuru ATN MossyOak ABL (Auxiliary Ballistic Laser) Laser Rangefinder Quick to Attach,...
12 Vortex Optics Razor HD 4000 Laser Rangefinder Vortex Optics Razor HD 4000 Laser Rangefinder
13 Gogogo Sport Green Hunting Rangefinder -1200 Yards Laser Range Finder for Hunting and Golf with... Gogogo Sport Green Hunting Rangefinder -1200 Yards Laser Range Finder for Hunting and Golf with...
14 Vortex Optics Ranger 1800 Laser Rangefinder , Black Vortex Optics Ranger 1800 Laser Rangefinder , Black
15 Gogogo Sport Vpro Laser Rangefinder for Hunting 1200 Yards Golf Range Finder with Slope,Flag Lock Gogogo Sport Vpro Laser Rangefinder for Hunting 1200 Yards Golf Range Finder with Slope,Flag Lock
16 BIJIA Hunting Rangefinder-6X 650/1200Yards Multifunction Laser Rangefinder for Hunting,Shooting,... BIJIA Hunting Rangefinder-6X 650/1200Yards Multifunction Laser Rangefinder for Hunting,Shooting,...
17 REVASRI Hunting Laser Rangefinder 8X 1800 Yards Hunting Range Finder with Target-Lock and Mode... REVASRI Hunting Laser Rangefinder 8X 1800 Yards Hunting Range Finder with Target-Lock and Mode...
18 Gogogo Sport Vpro Laser Golf/Hunting Rangefinder, 6X Magnification Clear View 650/900 Yards Laser... Gogogo Sport Vpro Laser Golf/Hunting Rangefinder, 6X Magnification Clear View 650/900 Yards Laser...
19 ASTRA OPTIX OTX1600 6x21 1760yd Laser rangefinder for Hunting, Shooting and Golfing with Red OLED... ASTRA OPTIX OTX1600 6x21 1760yd Laser rangefinder for Hunting, Shooting and Golfing with Red OLED...
20 Gogogo Sport Vpro Laser Rangefinder for Golf & Hunting Range Finder Distance Measuring with... Gogogo Sport Vpro Laser Rangefinder for Golf & Hunting Range Finder Distance Measuring with...
Bestseller No. 1
Vortex Optics Impact 1000 Yard Laser Rangefinder
  • The Impact 1000 features an intuitive platform with angle compensation; perfect for bowhunters and range-day lovers. Range targets down to five yards...
  • The primary HCD mode displays an angle compensated distance that is ideal for the majority of hunters and shooters. An advanced LOS mode provides the...
  • A scan feature gives continuous range readings to pan across a landscape or track a moving target. All modes can be set to read in yards or meters.
  • The diopter located on the eyepiece adjusts for differences in a user's eyes. Added 6x magnification brings targets in for a closer look and more...
  • Fully multi-coated optics enhance light transmission in low light settings. Waterproof and shockproof performance keep you in the hunt no matter what...
SaleBestseller No. 2
REVASRI Hunting Laser Rangefinder with Rechargeable Battery 1000 Yards Hunting Range Finder with...
  • [Hunting Range Finder with Mode Memory]-This laser hunting rangefinder has 7 functions: ranging mode,all-in-one mode, scanning mode, speed measurement...
  • [Measure Multiple Targets Continuously]- In continuous scan mode, you can measure multiple targets with one press. Angle, height, horizontal and...
  • [High Accuracy and Clear View]-High accuracy 1000 Yards laser range finder with 6.5X magnification. Multilayer coated glass lens and high end...
  • [Rechargeable and Portable]- The rangefinder is equiped with rechargeable built-in Li-ion battery, charging is super easy. The product is compact,...
  • [Technical Support]-24 hours full-time service, 1 year warranty, lifetime technical support. If you have any questions, please feel free to email us...
Bestseller No. 3
Halo Optics Z1000 6X Magnification Accurate Precise Water-Resistant Ergonomic Non-Slip Grip Portable...
  • HIGH-PERFORMANCE RANGE FINDER - Hunters who push deep into the woods need the perfect tools; The Halo Optics Z 1000 Rangefinder provides ranging...
  • ULTIMATE PRECISE - This Halo Optics Z 1000 6x Magnification Rangefinder for hunting simply can't be beaten; Auto Acquisition provides the ability to...
  • HIGH ACCURACY & CLEAR VIEW - The Z 1000 Hunting Rangefinder from Halo Optics is equipped with Angle Intelligence for calculating true horizontal...
  • WATER-RESISTANT - The interior of the Halo Optics Z 1000 Hunting Range Finder is upgraded with Premium Glass Optical Lenses, protected by a...
  • CONVENIENT IN USE - This Halo Optics Z 1000 Portable Hunting Rangefinder includes a CR2 lithium-ion battery, nylon case, lanyard, and lens cloth; It...
Bestseller No. 4
Nikon Prostaff 1000 Laser Rangefinder - 16664 Bundle with 3 CR2 Batteries and Lumintrail Lens Cloth
  • Hunting Laser Rangefinder: The Prostaff 1000 provides 6-1000 yard measurement range with a 6x high quality monocular
  • Automatic Measurement: Continuous measurement for up to four seconds with Tru Target that allows you to switch between first target and distant target
  • Compact and Durable: Water Resistant design with multilayer coating applied to all lens and prism surfaces
  • Tru-Target Technology: First target priority mode allows you to range an object as small as a fence post while distant target priority mode displays...
  • What You Get: Complete rangefinder packaged with case, lanyard, CR2 battery (factory installed), 3 extra Viridian CR2 batteries, and a Lumintrail...
SaleBestseller No. 5
LaserWorks Range Finder for Hunter, IPX 5 Waterproof True 1000 Yards to Trees Shooting Laser...
  • 【Waterproof Rangefinder for Hunting】-This hunting equipment is sealed to IPX5 waterproof standard, protected from water projected from a nozzle,...
  • 【Accuate Hunting Rangefinder】-It gets consistent and accurate data feedback at long distance to targets, traps, bushes or animals etc. It can even...
  • 【Smart Fast Laser Rangefinder】-When targeting not-easy-to-measure objects, just aim well, depress and hold the power button to activate...
  • 【Archery Bow Mode】-Easy to operate with continuous scan, 1st target lock and bow mode horizontal distance measurement with uphill or downhill...
  • 【Quality Rangefinder Monocular】-6X magnification with clear image at day time. Package includes a carrying pouch, wrist lanyard, lens cleaning...
Bestseller No. 6
Anyork Hunting Rangefinder with Rechargeable Battery, 1000 Yards Laser Range Finder for Bow Hunting,...
  • 【High Precision Golf & Hunting Range Finder】Adopting the latest Pin technology.Measuring range from 5 to 650 yards,LCD displays stright-line...
  • 【High Quality Rangefinder】The rangefinder used the advance inkjet technology ,Hardly Scratch the surface of the rangefinder , there will be no...
  • 【Rechargeable Battery 】Equipped with 7500mah,3.7V rechargeable lithium battery, it can measure more than 30000 times after a fully charge.; A...
  • 【About Waterproof 】If you used it in rained a bit,not heavy rained ,its ok .but In order to ensure the accuracy and long-term use of the...
  • 【WARRANTY and Full Accessories】Provides two years VIP(Need registered on webiste ) and lifetime customer Tech support. If you meet any quality...
Bestseller No. 7
Upside Golf LOCKON Golfing RangeFinder with Magnetic Golf Cart Mount – Dual Mode – Pin Vibration...
  • ⛳IMPROVED NEOMAG GOLF RANGEFINDER: The world’s first golf range finder with a built in range finder magnet, exclusively for golf, has been updated...
  • ⛳ SUPREMELY ACCURATE WITH PIN VIBRATION TECHNOLOGY: Accurate to within 0.5 to 1.0 Yards. We have personally tested this measurement system with...
  • ⛳ DUAL MODE SETTINGS: Tournament Mode measures the exact legal distance to the pin. Slope Mode provides the golfer with compensated yardage to...
  • ⛳ QUALITY AND STABILITY: Now featuring new and improved software with better stabilizer lock-on for distant targets. The neo-mag rangefinder golf...
  • ⛳ GREAT GIFT FOR GOLF FANS: These rangefinders for golfing make great golf gifts for men and women who are fans of the sport. They're part of the...
Bestseller No. 8
Laser Golf/Hunting Range Finder with Pinsensor 650/1000/1500 Yards Laser Distance Finder with 7X...
  • ⛳ 【Laser Golf/Hunting Rangefinder】MOESAPU Provide high-precision distance measurement like the Client say " works well for half the price of...
  • ⛳ 【4 Modes Function】This M-600VH Rangefinder has Normal Distance, Golf Flag Lock, Prey Speed, Slope Angle, Tree Height, Continuous Scan. These...
  • ⛳ 【Ultimate User Experience】Measuring up to 5-600M( M-600VH) / 5-1000M( M 1000M)/ 5-1500M( M 1500M). We use the stable 905 NM laser tube...
  • ⛳ 【USB Charging & Automatic shutdown】USB rechargeable, have the low power Reminder function, don't need you to buy the new battery or switch it...
  • ⛳【Handhold Size and Lightweight】Rangerfinder size 4.13 x 2.87 x 1.57 inch and N.W. 178g, perfect for carrying while golfing or hunting or for...
SaleBestseller No. 9
Callaway Golf Laser Rangefinders
  • Precise Slope Measurement: Our highly accurate laser rangefinder accounts for elevation changes and measures the angle of incline/decline, then...
  • Maximum Magnification: Equipped with 6x magnification, our rangefinders for golfing feature a range of 5-1000 yards with +/- 1 yard accuracy and even...
  • Pin-Locking Technology: Our precise laser measure with Pin Acquisition Technology (P.A.T.) allows you to lock onto a pin up to 300 yards away
  • Pulse Confirmation: Our range finder will emit a short vibrating "burst" when the laser locks onto the pin to confirm you have the correct distance
  • External Slope On/Off Switch: Legal for tournament play
Bestseller No. 10
Sig Sauer SOK10001 Kilo1000 Laser Range Finding Monocular, 5X20MM, HT, Black, One Size
  • 5x20 mm monocular with SpectraCoatTM anti-reflection coatings for superior light transmission and optical clarity
  • Revolutionary LightwaveTMDSP Technology for the fastest and longest distance rangefinder engine
  • HyperScan provides 4x range updates per second in scan mode while RangeLock reports the last range result when ranging distant targets
  • Features line of sight or angle modified range
  • High Transmittance LCD display for superior low-light performance
Bestseller No. 11
theOpticGuru ATN MossyOak ABL (Auxiliary Ballistic Laser) Laser Rangefinder Quick to Attach, Smart...
  • Compatible with ATN Smart HD Scopes e.g. X-Sight 4K and ThOR 4 series to deliver instantaneous POI adjustments.
  • Rugged and compact device, that guarantees lightning quick target engagement and long range precision.
  • Smooth integration with your smart sight's ballistic calculator for an increased hit probability at further distances.
  • Simple installation and a one button operation that allows for fast ranging of targets distance Day or Night.
  • See the distance to your target on your videos for a chance to hone your shooting skills or to relive your best shot.
Bestseller No. 12
Vortex Optics Razor HD 4000 Laser Rangefinder
  • The Razor HD 4000 with 7x magnification and a 25mm objective lens is the essential companion for the extreme hunter, archer and shooter. Tripod...
  • The Razor provides four target modes (Normal, first, last and extended laser range) and two range modes (had and Los). the scan feature displays...
  • All weather capable ranging allows the unit to return a distance even in adverse weather conditions. Intuitive, easy-to-use menus feature a simple,...
  • HD Optical System delivers exception resolution and outstanding color fidelity, sharpness, and light transmission. X plus Fully multi-coated lenses...
  • Built to handle tough situations The Razor uses Armorer coating to protect the lenses while rubber armor provides a secure, non-slip grip and durable...
SaleBestseller No. 13
Gogogo Sport Green Hunting Rangefinder -1200 Yards Laser Range Finder for Hunting and Golf with...
  • 【Laser Rangefinder for Hunting】--Class 1, 905nm laser type, Measuring range from 5 to 1200 yards, Provides fast measurement with accuracy ±1m,...
  • 【Horizontal Distance】Mode 1 is specially designed for hunting and will display straight-line distance, horizontal distance, and angle. Mode 2 is...
  • 【Unique Design & Battery USB Charging】-- Our range finder for hunting with clear optics, Sizes 106x 72 x 40 mm and weight 184g, perfect for...
  • 【Hunting Rangefinder】-- Designed for hunting and can measure both distance and speed. Provides distance data needed for accurate shots to avoid...
  • 【Full Accessories and 100% Satisfaction Promise】-- Complete laser rangefinder hunting set, including 1x Rangefinder, 1x Carrying Pouch, 1x USB...
Bestseller No. 14
Vortex Optics Ranger 1800 Laser Rangefinder , Black
  • The Ranger 1800 rangefinder is easy to use and features a clean, illuminated display and highly intuitive menu. The Ranger 1800 is capable of ranging...
  • The primary HCD mode displays an angle compensated distance that is ideal for the majority of hunters and shooters. An advanced LOS mode provides you...
  • A scan feature gives continuous range readings as you pan across a landscape or track a moving target. Three brightness settings allow the display to...
  • Fully multi-coated lenses deliver optimal light transmission. Textured rubber armor provides a secure, non-slip grip. Water and fogproof performance...
  • The included neck lanyard and removable utility clip make the Ranger easy to pack and keep handy. Compatible with a tripod adapter, allowing use on a...
Bestseller No. 15
Gogogo Sport Vpro Laser Rangefinder for Hunting 1200 Yards Golf Range Finder with Slope,Flag Lock
  • Easily measure with 3 modes: Scan mode (M1) - continuously scan targets within range; Golf/Slope mode (M2) - will display the linear distance, slope...
  • With Flag Lock and Slope Function: In golf mode (M2), linear distance, slope compensation distance, and slope will be displayed. The flag lock...
  • 6x Magnification: The focus can be adjusted by rotating the eyepiece to make view clear
  • Power Protection: After 8 seconds of inactivity, range finder will automatically shut down until you turn it on again
  • Powered by CR2 Battery: When battery power is low, a low power reminder will appear at the bottom of the screen. Before putting the battery into the...
SaleBestseller No. 16
BIJIA Hunting Rangefinder-6X 650/1200Yards Multifunction Laser Rangefinder for Hunting,Shooting,...
  • 【Multi Function Hunting Rangefinder】 Laser range finder for hunting sports, archery, shooting, and golfing with distance measurer, continuous scan...
  • 【High Accuracy Rangefinder 】Our rangefinder is a premium product with advanced pinseeker technology and accurately ranges from 5 to 650 yards and...
  • 【 Durable Body and Ultra Clear LCD Display】Made of strong and durable materials so that you don’t need to worry about dropping it while...
  • 【Compact and Easy to Use】 180g(≈6.35oz). lightweight design makes it compact and portable, perfect for hunting or shooting at targets. Long...
  • 【Fathers Day Gifts】You will get 1x Rangefinder, 1x Strap, 1x Cleaning Cloth, 1x English Manual, 1x Carry Bag, 1x Color Box, 1x CR2 battery. 2...
SaleBestseller No. 17
REVASRI Hunting Laser Rangefinder 8X 1800 Yards Hunting Range Finder with Target-Lock and Mode...
  • [High Performance Hunting Range Finder]-Suitable for hunting, golf, shooting, archery and other applications, 8X high power magnification, range:...
  • [Hunting Fast And Accurately]-Measurement accuracy of the rangefinder is ±0.5Yard and unit can switch between Meters/Yards. Measurement Speed <1...
  • [Measure Multiple Targets Continuously]- In continuous scan mode, you can measure multiple targets with one press. Angle, height, horizontal and...
  • [Easy To Carry]-Light weight, portable and durable, the size is only 120*72*38 mm and the weight is only 8 ounces (230g). It is very suitable for...
  • [Technical Support] -24 hours full-time service, 1 year warranty, lifetime technical support. If you have any questions, please feel free to email us...
SaleBestseller No. 18
Gogogo Sport Vpro Laser Golf/Hunting Rangefinder, 6X Magnification Clear View 650/900 Yards Laser...
  • HIGH PERFORMANCE & AFFORDABLE RANGEFINDER - Gogogo Sport focus on providing worldwide customers with great quality products but at the affordable...
  • GOLF/HUNTING RANGEFINDER - Come with 3 Modes, Normally Scan Mode, this mode can be used to range measurement of all items within the scope of...
  • EXCELLENT GOLF MODE - This newest GS03 Golf Rangefinder is equipped with the most advanced golf rangefinder technology. Pin-seeking and flag-lock tech...
  • EASY TO USE - Fast and accurate measurement with 1-yard accuracy, one-button meter and yard switching, on-button mode switching. Only 184g nets...
  • 100% RELIABLE AFTER-SERVICE - provides outstanding pre/after customer service, contact us if you got any questions, we will reply to you within 24...
Bestseller No. 19
ASTRA OPTIX OTX1600 6x21 1760yd Laser rangefinder for Hunting, Shooting and Golfing with Red OLED...
  • ULTRA-FAST RANGING: Our Standard Ranging Mode provides accurate and ultra-fast ranging speeds as fast as 0.10 seconds suitable for target shooting,...
  • ACCURATE LONG RANGING CAPABILITIES: With long distance ranging capability, this rangefinder is accurate and versatile for various objects at short...
  • REFLECTIVE OLED DISPLAY WITH LIFETIME WARRANTY: Provides a projected red color reticle and red readout with adjustable 5 brightness settings allowing...
  • PREMIUM OPTICAL QUALITY: Our All Glass Optical System provides better light transmission vs. lesser quality plastic lens systems. 6 times...
  • ADVANCED TECHNOLOGIES: Packed with featured technologies including Scan Mode, Horizontal (Angle Corrected) Mode, Angle Mode (with LOS), Archery Mode...
SaleBestseller No. 20
Gogogo Sport Vpro Laser Rangefinder for Golf & Hunting Range Finder Distance Measuring with...
  • The most cost-effective rangefinder you can find on the market to provide you reliable performance for golfing, hunting, bowhunting, and other...
  • Provide high-precision distance measurement. Integrates latest functions such as continuous range readings, ARC (angle range compensation),...
  • Measuring range from 5 to 650 yards, with +/- 1m high accuracy and 6x magnification. The flagpole locking function supports a distance up to 150 yards...
  • Fully multi-coated optics lenses effectively reduce reflected light and increase the transmission of light giving you a brighter clear image. The...
  • TOURNAMENT LEGAL: The "MTL" version features a slope switch that can let you turn off the slope function anytime you want, making your tournament...

Having trouble finding a great 1000 yard rangefinder?

This problem is well understood by us because we have gone through the entire 1000 yard rangefinder research process ourselves, which is why we have put together a comprehensive list of the best 1000 yard rangefinders available in the market today.

After hours of searching and using all the models on the market, we have found the best 1000 yard rangefinder for 2023. See our ranking below!

How Do You Buy The Best 1000 Yard Rangefinder?

Do you get stressed out thinking about shopping for a great 1000 yard rangefinder? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching 1000 yard rangefinder, which is why we have assembled a comprehensive list of the greatest 1000 yard rangefinder available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for 1000 yard rangefinder that you consider buying. Your questions might include the following:

  • Is it worth buying an 1000 yard rangefinder?
  • What benefits are there with buying an 1000 yard rangefinder?
  • What factors deserve consideration when shopping for an effective 1000 yard rangefinder?
  • Why is it crucial to invest in any 1000 yard rangefinder, much less the best one?
  • Which 1000 yard rangefinder are good in the current market?
  • Where can you find information like this about 1000 yard rangefinder?

We’re convinced that you likely have far more questions than just these regarding 1000 yard rangefinder, 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 1000 yard rangefinder, 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 1000 yard rangefinder. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an 1000 yard rangefinder 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 1000 yard rangefinder 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 1000 yard rangefinder 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 1000 yard rangefinder?
  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 1000 yard rangefinder.
  5. Customer Ratings: Number ratings grade 1000 yard rangefinder objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their 1000 yard rangefinder.
  7. Product Quality: You don’t always get what you pay for with an 1000 yard rangefinder, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an 1000 yard rangefinder is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining 1000 yard rangefinder 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 1000 yard rangefinder is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

Related Post:

FAQ:

Q: What is the best golf range finder?

A: So it is better to buy a golf range finder of a reputable company. Nikon is considered one of the most leading brands of the optics. The Nikon 8397 ACULON is the fastest and the most precise range finder. That is user-friendly with its compact body and speed as it gives the quick distance measurements.

Q: What is the best range finder for hunting?

A: The Halo XL450 is the lightest and the best hunting rangefinder for close range hunting. Its maximum rated ranging distance is 450 yards with a magnification of 6X. This simply means it is suitable for bow hunting. It has the most reliable adjustment for altitude, and its operation is pretty easy.

Q: What is range finder?

A: range finder. or range·find·er. any of various instruments for determining the distance from the observer to a particular object, as for sighting a gun or adjusting the focus of a camera.