Speed Gauage Cronograph

Ballistic Chronograph
The device is designed to measure the speed and kinetic energy of the ammunition in air guns.
Features:
Range of measurement: 6,1 <=500 m/s
Current consumption: 100mA ( with LCD backlight)
Power supply: 2x AA alkaline battery or AC/DC converter ~230V/ 7-12V
Dimensions: 135 x 67 x 87 mm
weight: 600 g

Measurement function:
Velocity V [m/s]
Kinetic energy E [J]
Average kinetic energy, Esr [J]
Average velocity Vsr [m/s]
Minimum velocity, Vmin [m/s]
Maximum velocity Vmax [m/s]
Absolute velocity dVsr=|Vmax-Vmin|
Standard deviation (SV) [m/s]
Velocity feet per second [fps]
Rate of fire RoF (rate of fire)

Other function:
Setting the weight of pellets (0.01–25.00 g)
Callibration
Memory: 250 measurement of value
Transmission via RS232 or USB-COM cable to the computer