Programmable, countdown or count-up timing for any event. Count-up timing from 00:00-59:59. Can be used as digital paceclock with reset capability. Each system comes standard with one display, a control box and 25 cable. Each display has its own built-in horn and can be easily seen from distances up to 400! Network as many displays as you want so you can have synchronized gametimers at both ends of the pool, court or field of play.