What is measured is improved! This simple to use timer with Cartessa AGC4P, AGC-4, AGC-5 as well as Pro Gate Jr and CK-0716 controls. Have a different control? Call and ask. Timer starts with the gate signal and stops with a run over switch. Comes with enough cable length to time up to 65 feet away. Further by adding cables. Times to an accuracy of .01 seconds. Add a second strip and do sprints without a gate. Take it to the track, plug it into the gate, or use a second strip and time yourself in and out of a corner. 2 or more systems can be hooked together for 2 person gates, or at the track for multiple lanes.