Digital timer clips easily to a lab coat, belt, notebook, clipboard, or anywhere. It can be programmed in the countdown mode, in 1 second increments, from 100 hours to 1 second. At zero, a loud-beeping alarm sounds for 60 seconds or may be silenced manually. In stopwatch mode, it times from 1 second to 99 hours and then repeats. It also has a time-out feature in both up and down counting. The timer notifies when to read a colour change, remove a sample from an oven, or go to a meeting. Five-button operation is quick and intuitive.