Manufacturer Description:

* Heartbeat rate measurement function: display dynamic pulse rate. * Perpetual Calendar function: year value display ranges from 2000 to 2099, default value is 1st, Jan. 2009; 12/24-hour time format selectable, default value is 12-hour format. * Alarm clock function: triple alarm clock with alarm tone 'Di ~'. The alarm sound duration is 60 seconds. * Hourly chime function: select to turn on /turn off this function. * Stopwatch function: maximum value is 99Hours 59Minutes 59Seconds 99 with SPL function included. * Countdown timer function: maximum value is 23H59M59. * Secondary time function: another time piece can be set. * EL and LED backlight function included. Read more