Traceable* Key Chain Timer

Counts down, alarms, and is a stopwatch. Designed to hold your keys or hook on to your lab coat buttonhole. Four-digit LCD display always shows time remaining in hours and minutes. Program it in the countdown mode in minute increments from 20 hours to 1 minute. When zero is reached, an alarm sounds for 60 seconds, or it may be silenced manually. In the stopwatch mode it times from 1 second to 20 minutes and then repeats itself. NIST Traceable certificate is provided. Has a rugged, chemical-resistant ABS case, quartz-crystal accuracy (0.01%), and 1 1/2 year continuous-use, replaceable, silver oxide battery. Dimensions are 1 1/2 x 3/4 in. and weighs just 3/4 oz.