Weight: 19 oz - Accuracy: +/- 1 mph - Battery Type: C (2) - Size: 4.3 x 8.4 x 6 - Auto Racing: 10-200 mph (1500+ feet away) 16-322 kph (457 meters away) - Baseball / Softball / Tennis: 10-110 mph (90 feet away) 16-177 kph (27 meters away) - Knowing how fast a player pitches or runs can instantly influence a coaching decision. And 15 over the limit doesn't seem so excessive when you find out what they're doing down on the track. The Bushnell� Velocity will tell you to +/- 1.0 miles per hour using digital technology and DSP (digital signal processing). Measure the speed of a baseball from up to 90 feet or a vehicle from as far as 1300 feet.