The Xero C1 Pro Chronograph makes ballistics calculations easy. This pocket-sized device measures projectile velocities from 100 fps to 5,000 fps, and is perfectly suited for bullets, arrows, bolts, slugs, paintballs and even airsoft BBs. The Xero C1 Pro is easy to use: simply deploy the tripod, activate the device, point it in the right direction, and shoot within about 15 inches of the device. It picks up the projectiles via radar, thus eliminating the need to mount the Xero C1 Pro to the weapon. This means it won’t affect your zeroing or barrel harmonics, so your accuracy remains the same. Since the unit isn’t triggered by a muzzle blast, it can pick up on projectiles from firearms with suppressors, muzzle breaks, compensators, and other muzzle devices. After taking the shot, the Xero C1 Pro immediately shows the data on a rear facing display, and the purpose-built ShotView app can keep track of your shot data. In addition to its ease of use and precise measuring capabilities, the Xero C1 Pro is built to last, thanks to its IPX7 water-resistant rating. With up to 6 hours of battery life, you’ll have plenty of time at the range.