Four independent channels each of which counts up or down for any interval from 1 second to 100 hours. Extra large display indicates channels in use. Each one has a distinctive 1 minute alarm. Automatically begins to count up to indicate time elapsed after count down reaches zero. Memory recalls last timer setting for reuse. Also has a clock mode. Has a stand, pocket clip and a magnet. Dimensions: 2 7/8” X 2 1/2” X 9/16”. Includes one LR44 button cell battery; replacement #3029-60. Five year warranty.