The Presto electronic timer has three handy functions in one compact unit: count-up timer, count-down timer, plus a clock. Easy-to-read L.C.D. digital display shOws hours, minutes, and seconds. The electronic timer times up to 24 hours. Loud electronic tone signals when time is up. Memory stores count-down time to use again. Special clip-on back converts to an easel stand and has a magnet for use on metal surfaces.