Four different timer stations, each with distinctive alarm, color coded lights, and recall mode. Counts down to alarm, then automatically begins counting up to show time elapsed before alarm is shut off. Switchable from minutes/seconds to hours/minutes. 100 hour maximum per station. Durable, splash-resistant keypad and case. Wall mountable. Uses four "C" batteries (included). 7-1/4"Wx8"Dx5-1/8"H.