The CED M2 Chronograph goes far beyond the competition with advanced custom features including it’s sleek, lightweight, and compact design.  Advanced software & digital circuitry equals extremely fast performance!  Over 1000 shot capacity with up to 500 string permanent memory.   Records velocities from 50 fps to 7,000 fps.  High, Low, Average, & Hi-Average velocity readings.  Extreme Spread & Standard Deviation.  Edit & Omit functions.   Built-in Calculator. IPSC / IDPA Power Factor computation Function.  New Data Collector Software program included.  Meter or feet recording.   10X Mode �" records slower velocities in decimeters.  Voice Chip technology �" Results can be heard as well as seen.   On / Off control, with no-memory loss "Auto-Shut Down" mode.   PC Downloads - USB interface for fast, software downloads of stored data.  New Data Collector Software program included.  Low battery warning indicator.  Back-up battery storage.   9-Volt battery operation (not included)