Description: Support measuring initial velocity, firing speed and energy of motion. Support free falling speed measurement, can test and collect a variety of sample data, such as BBs, Steel balls and Leadballs. Equipped with memory function, multigroups of calculating data in memory to meet your various testing requirements. LCD display, multiunits display of m/s, FPS, J, J/cm2, FT, r/s. The APP support 8 languages switchable: Chinese (Simplified), Chinese (Traditional), English, German, Italian, Japanese, Russian, Polish. Built in high-sensitive testing sensor for high accuracy testing, the error is 0.35%. Bluetooth and APP Sync Data, Mobilephone for iOS and for Android system. Specification: Product battery: Built-in(400mA) Product chip: UNR 372U Bluetooth version: 2.0 Charging voltage: DC5.0V Product size: 130x110x60mm Product weight: About 250g(net weight) Accuracy: test error ≤0.35% Work surroundings temperature: -10°C-42°C Energy test range(J): 0-999J Shooting speed test range: 0-120 balls/s 1 meter high horizontal range: 0-800meters(about 0-2625 inches) First speed test range(FPS): support free fall test(zero first speed) Input range of test ball weight: 0.01-20g Standby power off time: customizable Input range of test ball diameter: 0.01-20mm Package Includes: 1 x Chronograph Shooting Speed Tester 1 x Tripod 1 x USB Cable 1 x User Manual