Sound detector is effective for students of all ages and abilities
The appears to be a traffic signal, but actually signals too much noise. Select the appropriate sound level for any situation and let the be an audio-visual reminder when levels are too high. Equipped with long lasting LED lights, a 2-second delay before the siren sounds, and voice ("Quiet Please" in 4 languages or your own recording) or siren options. Includes 120V AC adapter and optional face stickers for the lights. Self-standing or wall-mountable.