General Tools TI891B Three Channel Timer-Stopwatch with Clock General's Three Channel Timer has three independent countdown timers/stopwatches; 12/24-hour clock; Counts down from 19:59:59; Counts up to 19:59:59; Counts up after counting down to zero; Three independent countdown timers/stopwatches 12/24-hour clock Counts down from 19:59:59 Remembers last timer setting; Magnetic back