Xcortech Chrono is an advanced chronograph that gives you the most exact detailed readings. Popular amongst the Airsoft community, this chrono is capable of calculating your velocity, energy and rate of fire. Compact in size, this chronograph can be taken anywhere. Screen is LCD and is backlit for hard to see places. The Xcortech X3200 Mk3 is powered by 2 AAA Batteries (not included). Features:

• External micro- USB Power input (Power only, not for charge )
• More accuracy
• More reliability
• Use 2 of AA battery (extend battery using time compare AAA type (MK2 use AAA))
• High density IR sensor (X3200 MK2(old model): 8 sensors, MK3: 14 sensors)
• Low cost solution
• Extend Battery Life