Xcortech X3200 MKIII Chronograph

External micro- USB Power input ( Power only, not for charge ) Improved accuracy and reliability Powered by 2x AA battery High density IR sensor ( 14 sensors compared to 8 sensors on previous model ) Standard 1/4 inch camera tripod mount Measures muzzle velocity from 30 m/s ~ 400+ m/s (90 fps ~ 1200+ fps) ROF range: 100~5000RPM Calculates muzzle kinetic energy from 0.01~999 joule High quality DOT Matrix backlit LCD display External micro-USB power input (no battery charge function) High density IR detector for fired projectiles 3 memory options for saving various ammo weight and calibers 25 Shot memory log of velocity & ROF (Rate Of Fire) Energy Per Unit Area Calculation 14 internal sensors Tripod ready (Screw for standard camera / camcorder tripods) Muzzle velocity range:  30-400+ m/s (90 - 1200+ fps) R.O.F. range:  100-5000 RPM Muzzle energy range:  0.01~999 Joule Power:  2x AA Battery, External Micro USB Weight:  200g Dimensions:  113mm x 97mm x 55mm