D01 series count down/up Timers is suit for manufacture, in office, in home, industrial, or in other anywhere need count down/up, etc. it can count 1 second up to 99minute59second. This timer is easy to use with compact size and pretty form.. it can be nipped on clothing or on table. The big size LCD display is so clear. Features 1) able count down/up Timers. 2) Time 1 second to 99minute59second 3) By Manual to starting or stop 4) Voice alarm 5) Rated power voltage: Ue=1.5V