THE YACKER TRACKER appears to be a traffic signal, but actually signals too much noise. Select the appropriate sound level for any given situation and let the Yacker Tracker be an audio-visual reminder when the noise level gets too high.
The Yacker Tracker lights-up green for acceptable sound levels, yellow when the volume is rising, and red when it's too loud. The decibel level can be set from 50 to 110. There's also an optional siren if you need an auditory indicator of inappropriate noise levels.
The Yacker Tracker can be used outside of class too: in school libraries, cafeterias, or backstage during a performance in the school auditorium.
If you'd like to try a Yacker Tracker, you can purchase one risk free from us. And if you don't find it useful enough, send it back within 60 days for a full refund.