Product Number: SN00172
In Stock (Ships within 1-2 business days)
A self-monitoring traffic light sound meter. Green light turns to yellow as a warning and then to red as noise in the room goes above the level set by the teacher. Decibel sensitivity is from 50dB to 110dB. Optional audible
quiet please or siren can also be used. Includes meter to track the number of times sound exceeds set level, long-lasting LED lights, AC adapter, and face stickers for lights. External speaker jack enables unit to connect to larger speakers.The 17 in. H x 5 in. W x 5-3/4 in. L unit can stand alone or be wall mounted. 120V AC.