The X3400 Chronograph is a great way to measure your airsoft guns power
Made of ABS resin and aluminium alloy, Size : 175 × 86 × 37 mm
Extra large diameter, you can even measure the velocity of paintballs.
Built-in rechargeable battery
Firing cycle can be measured. Six preset memory function.
Large backlit LCD display with Auto power off function deployment.
Charges from included mini usb cable (Does not include mains adaptor)