YZ Battery Powered Wireless Laser Timer for Sprints, Track Laser Timer 40 Yard Dash, Stopwatch for Lap Running Speed Drills Sking Skating Track Field BMX Autocross Barrel Racing

Brand: YZColor: DoubleFeatures: 【Battery Powered】All devices are built-in batteries, no need to connect a power bank, easy to use. Toolbox packaging, waterproof and shockproof, portable. What’s in the box? Timerx1, Laser timerx2, reflectorx2, standx5, usb cablex3, user manualx1. 【Automatic Data Saving】Wireless communication distance: 500m, effective laser distance: 0-6m. The timer displays the time(1.5" character display), and the laser device also has time display for easy operation. Each group of results will be automatically saved by the laser device, and you can press the "Add" and "Dec" keys to view the results of the previous group and the next group. 【Two Tracking Modes】You can switch two modes through the "Menu" button. Mode 1 "Start-End Timing" requires two sets of lasers to operate, suitable for timing of starting and ending points in the different position, mode 2 "Lap Timing" requires only one set of laser operations, suitable for timing of starting and ending points in th