Athlon Rangecraft Velocity Pro Radar Chronograph - New for 2025, Athlon makes ballistic calculations easy with the Rangecraft Velocity Pro Radar Chronograph. It picks up the projectiles via Doppler radar, thus eliminating the need to mount the Rangecraft Velocity 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. The Rangecraft Velocity Pro can measure projectile velocity between 65 fps and 5000 fps, allowing users to measure the velocity of a massive assortment of projectiles. Features: Reliable Data Capture: Rifles, Airguns, Pistols, Archery and more! The Rangecraft Velocity PRO Radar reliably captures projectile velocities from 65 - 5,000 FPS, from .17 -50" diameter. 6+ Hour Battery Life: Powering through the longest range days, you'll more than likely run out of ammo long before you run out of battery. Powered by a USB-C rechargeable internal lithium-ion battery. USB-A to USB-C cable included. Compact Design: Fits as easily in your pocket as it does your 3-day assault pack. At 4.7 ounces, this chronograph will not weight you down. Data Management: Manage every range trip, take notes on recorded shots and makes adjustments through the Athlon Ballistics Lite app. Ballistic Enabled: The Athlon Ballistic Lite app is an easy to use ballistic software to help you extend your ranges and take a precise shot. Tag your session data from your Velocity PRO radar with your rifle profiles to easy find your data for years to come. Intuitive Interface: Easy to navigate and quick to set up. An intuitive button layout features an option button to cycle through various data points such as average, minimum, and maximum velocities, standard deviation, extreme spread, kinetic energy, and power factor. While capturing data, easily remove the last shot fired by holding the DLT button.