Product Details:

COOLSHOT 20i GII golf laser rangefinder provides incredibly fast, accurate distance measurements for every shot—even those involving slope (elevation changes). 

• Measurement range: 6-800 yds
• ID (Incline/Decline) Technology displays the "play as" distance, in addition to the actual distance, for an uphill or downhill shot.
• First Target Priority mode–useful for measuring the distance to a flagstick on a green with woods in the background.
• High-quality 6x monocular with multilayer coating for bright, clear images
• Single or continuous measurement (up to 8 seconds) allows for quick, easy measurements to multiple targets.
• Displays in 1-yard increments
• ± 1-yard accuracy (under 100 yards), ± 2-yard accuracy (over 100 yards)
• Long eye relief
• Easy operation enables measurement of actual distance, while golf mode displays the slope adjusted distance (Horizontal distance ± Height) which is a guide for how far you should hit the ball and useful when golfing on an uphill/downhill course – ID (incline/decline) Technology.
• Compact, lightweight and ergonomic design
• Rainproof (IPx4)
• Power Source: 1 CR2 Lithium Battery 
• Size (Length x Width x Height): 3.6 x 1.5 x 2.9 in 
• Weight( w/o Batteries): 4.6 oz