Shooting Chrony Alpha Master Chrony: * Measures the speed of bullets, arrows, shotguns, air-pellets and more from 30/fps to 7000/fps and within 0.5 percent accuracy * Can go anywhere * Made of 20 gauge steel, but weighs less than 2-1/2 lbs * Powered by one 9 volt alkaline battery (not included) * Equipped with an extra large LCD readout * Gives numbered shot velocities * Delivers high, low and average velocities * Dimensions when folded: 7-1/2"L x 4-1/2"W x 2.75"H * Comes with a 3-year warranty