In ballistics there is no room for error. The Xero C2 chronograph is the source you can trust. It builds on the success of its predecessor with a faster shot processor and improved features for an experience you won't find anywhere else. VERSATILE AND RELIABLE PERFORMANCE - The chronograph will reliably pick up your shots, thanks to the accurate sensor. The device can measure projectile speeds from 100 fps to 5,000 fps for bullets, arrows, slugs, airsoft BBs and more. RESUME YOUR SESSION - Shoot different firearms while the barrel cools off, or test multiple bows or arrows with the resume sessions feature - which keeps data separate for each. SMARTWATCH INTEGRATION - With smartwatch integration, you get easy access to your data while you maintain your shooting position. Connect your compatible Garmin smartwatch to access session controls, view live data and import muzzle velocity into the onboard Applied BallisticsA(R) solver. RAPID-FIRE SUPPORT - The faster processing speed supports rapid fire of up to 10 shots per second, depending on projectile velocity. SHOTVIEW(TM) APP - Keep track of your shots, measure deviation, manage sessions, view live data and more when paired with the ShotView app on your smartphone. BUILT TO ENDURE - Reinforced housing is designed to withstand recoil when mounted to your rifle and is water-resistant with an IPX7 water rating.