Plan your game with the Nikon COOLSHOT 20 Laser Rangefinder. Ideal for professional golfers, the rangefinder measures the distance from its position to the golf stick or reflective targets. It has a maximum range of 250 yards for golf sticks and 550 yards for reflective boards. The rangefinder has the First Target Priority mode that automatically shows the distance to the nearest target when overlapping subjects are observed from its 20mm objective lens. The 6× magnification lets you spot targets at mid-range distances. Users with eyeglasses can also look through the rangefinder as it has a 16.7mm eye relief. The in-view display shows the relative distance to the target along with other information. This rangefinder works on a class 1 eye-safe IR laser and offers measurement accuracy of ±1 yd/m to 100 yds/m and ±2 yd/m over 100 yds/m. The automatic power-off function switches off the rangefinder after 8 seconds of inactivity. This Nikon rangefinder has an IPX4-rated waterproof, impact-resistant plastic housing with a textured slip-resistant grip. Use a single CR2 coin-cell battery to function the rangefinder. You can use the rangefinder in a temperature range of 14 to 122°F.