AC6000 Chronograph AC6000 is Acetech's newest chronograph, enabling precise measurement of BB exit velocity. Acetech designers, applying their airsoft electronics expertise, have created one of the best chronographs currently available on the market. The device housing is made of durable polymer, making it both lightweight and long-lasting. The chronograph features a standard photo sensor thread, allowing you to mount a bipod. Features: - Measures velocity from 90-1200 FPS (30-400 m/s) - Measures rate of fire from 100 to 6000 RPM - 5 memory slots for different BB configurations - Extremely high measurement accuracy thanks to patented sensors - Easy-to-use interface with color OLED display, 128x128 pixel resolution - 25 memory slots for velocity and rate of fire data - Automatic calculator that computes MAX/MIN/AVG values from shot memory - Wide measurement aperture (36 mm diameter) - Powered via micro-USB (5V / 0.5A) or 4 AAA batteries - Compatible with standard photo-thread bipods (Batteries not included)