Digital Sand Timer [7890]

Useful For Teaching Time Perception And Time Management. Animated Sand Flows At The Same Rate As Digital Time Elapses. The Countdown Timer Can Be Set From 1Sec. To 59Min. 59Sec. Turn Over Just Like A Conventional Sand Timer To Start. Digital Display Turns Over When Timer Is Turned Over. Requires 2 X Aaa Batteries (Included). Clock And Alarm Function. Dims: 56 X 89 X 25mm.