(4) Channel Timer, Features Display Previously Programmed Countdown Times, Overall Depth 1/2 in, Overall Diameter Not Applicable, Overall Height 2 1/2 in, Overall Width 2 3/4 in, Digital Display Screen Type LCD, Alarm Type Audible, Display Type Digital, Maximum Time Setting 99 hrs, 59 minutes, 59 seconds, Minimum Time Setting 1 sec, Count Direction Count Down, Count Up, Number of Channels 4, Clock Function Included Yes, Calibration Certificate Type Traceable, Includes Clip, Magnet, Stand