Digital Timer, Overall Depth 1 in, Overall Diameter Not Applicable, Overall Height 2 1/2 in, Overall Width 3 in, Digital Display Screen Type LCD, Alarm Type Audible, Display Type Digital, Maximum Time Setting 9 hrs, 59 minutes, 59 seconds, Minimum Time Setting 1 sec, Count Direction Count Down, Count Up, Number of Channels 1, Clock Function Included Yes, Calibration Certificate Type Traceable, Includes Magnetic Back, Batteries Included Yes, Battery Chemistry Alkaline, Battery Size AAA