Check the listing for details. Shooting chronograph R2H. Condition: New. Listed at 199.00 USD. Ballistic chronograph R2H About The R2H chronograph is universal and compact device for archery, airguns, fire arms. Thanks to reliability and high accuracy in measurements, it met with wide interest in the shooting world. It's hard to find something better and easier to use. --> Functions velocity V [m/s], [ f/s ] kinetic energy E [J], E [Ft/Lbs] shooting counter power factor PF ( IPSC ) average kinetic energy average velocity Vavg minimum velocity Vmin maximum velocity Vmax absolute velocity dV=|Vmax-Vmin| standard deviation SV rate of fire RoF bullet weight 0.01 - 50.00 g ( 600 gr ) calibration memory 250 ( 500 ) cells data transmision to computer Parameters current consumption: 100 mA power supply: 2AA (alkaline or rechargable battery) dimensions ( h x w x d ): 260x105x100 mm weight: 1.06 kg Further details The products are available for sale by professional trading companies. They are also used by manufacturers of shooting equipment. The R2H chronograph is a modern and solid metal construction used wherever precision is required. Additional Features: Chronograps has a user-friendly calibration function that allows to get a high measurement accuracy. Data transmission to external devices occurs via a serial port (RS232, USB-COM cable or Bluetooth module) or a USB port and cable with USB micro-B or USB mini-B ending. Details: Additional accessories (as option): bags, cables, Bluetooth LE, Bluetooth Classics, AC / DC power supplies, tripods, rechargable batteries AA. Package Includes: Chronograph and instruction. Additional accessories, not included. Products covered by a 12 month warranty .