Time Tracker Mini is a simple timer with 3 coloured lights and an optional alarm, which gives children visual and auditory cues for timed activities. Its ideal for use in the classroom or at home and is easy to use with just 2 dials. The total time ranges from 5120 minutes, in 5-minute increments. Use the green dial to set the time limit, and the yellow dial to set a warning alert. Press the start button to activate the green light. If you selected a warning time, the light changes to yellow, and once time is up, the light dome turns red and an alarm sounds.