1.Velocity: FPS/ MPS.
2.Fire Rate: Balls per second BPS/BPM
3.Pre-set B.B. weight v.s. energy (Joule) 0.20g .023g 0.25g 0.30g 0.33g 0.43g 0.89g
4.Self-supply internal sensor light source. You can use it indoors or outdoors. Day time or night time.
5.Extra large size diameter, (20mm. You can even measure the velocity of paintballs.
6.External Barrel Adapter for aiming straight.
7.Using 6F22NT 9VBattery.
8.Auto shut down in 120 second to save battery life.
9.Blinking when low battery
10.Handheld small size: 12.5*5.5*5cm
11.Tri-pod adapter on the bottom.
12.6061T6Aircraft aluminum. Extremely durable.