. Four timers in one, too! Times as many as four activities at once. . Times up to 24 hours in timer or stopwatch mode. . Calendar displays day and date to the year 2099. Visit us on the web at INSTRUCTIONS .2003 by National Presto Industries, Inc. Insert Battery Before Using: Remove the battery compartment cover on the back of the unit (Fig. 1) by placing your fingernail in the groove at the top right corner of the cover and pull the cover off. Insert one AAA battery into compartment matching t