GPO USA 6×20 Flagmaster 1800 Golf Laser Rangefinder
The GPO USA 6×20 Flagmaster 1800 Golf Laser Rangefinder delivers tournament-legal slope compensation, pin-seeking visual confirmation, 1800-yard reflective ranging, and red OLED display clarity.
- 1800-yard reflective laser measurement engine
- 6x magnification golf tournament monocular
- 20mm objective lens optical aperture
- Pin-seeker dual target detection logic
- Slope angle distance compensation switch
In Stock
Description
Seeking tournament pin distance verification? The GPO USA Flagmaster Golf Rangefinder 1800 in 6x20mm delivers professional slope-adjusted yardages. Featuring pin-seeking visual confirmation, 1800-yard reflective ranging, and red OLED display, it speeds up club selection, though monocular 20mm objective dimensions restrict early morning dawn visibility.
A lightweight composite frame encased in ergonomic rubber armor provides shock defense against golf cart drops. High-transmission optical glass features anti-reflective multi-coatings for crisp target definition through the 20mm objective aperture. Completely rainproof to IPX4 standards, this compact unit measures 3.9 inches long and weighs 5.2 ounces with its CR2 battery installed.
Key Features of GPO USA Flagmaster
Buy GPO USA Flagmaster 1800 rangefinders to equip golfers with tournament-legal distance measurement and surgical pin detection. This precision optical instrument delivers instant yardages, slope angle compensation, and dual visual flag confirmation across professional fairways.
- 6x optical magnification provides a bright field of view for spotting distant hazard stakes
- 20mm objective lens keeps carrying weight down to an ultralight 5.2 ounces
- 1800-yard reflective laser measurement engine calculates distance to pins in 0.25 seconds
- Pin-seeker technology locks onto the flagstick and flashes red rings for positive confirmation
- Durable GPO USA Flagmaster rubber armor cushions internal sensors against cart vibration
- Slope compensation switch calculates adjusted yardages based on course elevation changes
- External indicator light signals tournament compliance when slope mode is deactivated
- Organic red OLED display provides nine manual brightness settings for sunny fairways
Pin-Seeking Optronic Mechanics
Built with advanced software filtering, the internal computer isolates flagsticks from background trees and hillsides. The pulsed laser diode processes returns in 0.25 seconds with 0.5-yard accuracy under 300 yards. O-ring seals protect electronic circuitry across operating temperatures from 14°F up to 131°F.
Pocket Ergonomics Carry Bounds
The compact 3.9-inch chassis slips into golf bag pockets or attaches to belt clips. Ergonomic top contours position index fingers directly over the measurement button. Comfortable 16mm eye relief provides complete display viewing for golfers wearing sunglasses.
Course Management Maintenance Rules
The top measurement button delivers fast yardages while the secondary button toggles slope calculations. This specialized golf laser rangefinder is not engineered for long-range tactical sniper ranging past 1000 yards.
- Inspect CR2 battery voltage and replace coin cell every 1500 measurements
- Clean optical glass using lens fluid and microfiber cloth every outing
- Check battery cap threads and rubber armor seams every 200 hours
Spectacular Lifetime Warranty Manifest
GPO USA covers the optical and electronic systems with an unconditional lifetime warranty. The product package includes the laser rangefinder, premium magnetic carry case, wrist lanyard, CR2 battery, and operator manual.
GPO USA 6x20 Flagmaster 1800 Golf Laser Rangefinder Specs
| Brand | GPO |
| Laser Type | Class 1M Eye Safe |
| Metering Range | 5 to 1800yd / 4.6 to 1645.9m |
| Magnification | 6x |
| Objective Lens Diameter | 20 mm |
| Power Source | 1 x CR2 |
| Accuracy | 1yd / 0.9m |
| Angle of View | 7.5 (Actual) |
| Exit Pupil Diameter | 3.3 mm |
| Eye Relief | 16 mm |
| Dioptric Correction | +3 |
| Form Factor | Monocular |
| Inclinometer | Maximum Angle: 60 |
| Environmental Protection | Water-Resistant (IPX4) |
| Dimensions | 3.7 x 3 x 1.3 Inches / 94 x 76 x 33mm |
| Weight | 5.2oz / 148.0g |
GPO USA 6x20 Flagmaster 1800 Included:
- GPO USA 6x20 Flagmaster 1800 Golf Laser Rangefinder
- Wrist Strap
- Carabiner Clip
- Cleaning Cloth
- Hard Case
- CR2 Battery
























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