The Fastime 28 is a professional quality stopwatch that features jumbo digits and has a rugged water / shock resistant case. It has a large easy to read display with a three button lay out, split/reset, mode and start/stop.The alarm sounds when the actual time equals the pre set alarm timeEasy to read display featuring 15mm jumbo digitsSupplied with a CR2032 lithium battery with an easy to access rear battery hatchThe mode button allows you to cycle through three modes. Mode A is the primary mode that shows single time display and allows the stopwatch to count up to 24 hours. Timing to 1/100th sec for the first 30 minutes and then in 1 second intervals up the the 24 hour mark. With start, stop, (time out) resume or reset function and cumulative split time function. For a one/two fast finish, press the split button to take the time of competitor 1, press the stop button and then the split button to show the time of competitor 2. Mode B allows the stopwatch to show the time of day. In Mo