Yacker Tracker - Developed by a Professor of Education and designed specifically for classroom teachers! Help students know when they are being too loud with this self-monitoring traffic light sound meter. Select the appropriate level of noise for any given situation. Then set your desired level in decibels and use the Yacker Tracker as a visual reminder for when the noise level starts to get too loud! Recently upgraded to include a sound as auditory cue for student attention. CTU-3030
