ESH Large LCD display Timer , Digital LCD ,Suitable for Laboratory, Kitchen, Factory, Baking, Cooking And Classroom(White) Easy For Use In: Laboratory,Kitchen, Factory, Sport, Classroom etc... Any place that need ESH Countdown Timer. You can see this timer from a long distance. KeyCount up: UP shows on display; Count down: DOWN shows on display. Up to 99M:59S. Big, bright, bold numbers If you lose the instruction book or have any problems/difficult about the setup, please don't hesitate to contact us on Amazon. We can help you to solve the difficulties