Timer counts down with an alarm and counts up with a time-out feature. Program it to count down from 99 minutes, 99 seconds to zero in any second increment. In the stopwatch mode, the unit will count up to 59 minutes, 59 seconds, and automatically roll over to zero and continue timing. Extra-large, 3/8"-high display and vivid LCD digits continuously show time and are readable from 8 ft. Loud, high-decibel alarm may be turned off manually or is automatically silenced after 1 minute. Timer is accurate to 0.01%. Individually serial-numbered Traceable® Certificate indicates timer's traceability to NIST standards. Magnetic back and flip-open easel. Size is 2-1/2 x 2-1/4 x 1/2" and weight is 1-1/2 oz. Supplied with a 2-year, continuous-use, silver-oxide battery. Replacement battery Cat.No. 291-1039.