Competition Electronics Prochrono Digital Chronograph & Prochrono Digital USB Interface and Purchasecorner Polish Cloth Bundle
Velocity Range: 21-7,000 feet per second.Temperature Range: 32-100 degrees Fahrenheit. Size: 16 x 4 x 3-1/4 inches/ Battery Required: One 9-volt alkaline battery (not included).Mounting Hole Thread: 1/4 x 20.Guide Wire Size: 3/16 x 16 inches. Memory Capacity: Up to 9 strings of up to 99 shots each.Minimum Time Between Shots: Between 250 mSec and 500 mSec Shot Timing Resolution: 750 nSec Crystal Controlled.Accuracy: +/-1% of measured velocity, or better.Current Consumption: Approx. 15mA. USB Interface accessory provides you with everything needed to connect the Pro Chrono Digital chronograph to a computer and expand it's functionality with the included software program. Now a PC can be used to operate the chronograph as well as collect and manage the data it provides. It has many useful applications both at home or on the range. It is compatible with all Pro Chrono Digital Chronographs (part # CEI-3800)