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Classroom traffic light (noise sensors and alarm)
Slide 1 of 6
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CA$45

Classroom traffic light (noise sensors and alarm)

1+ month
148
8

Cool for decor or keeping the noise down. Can be set to constant display of any of the three colours or can be put on “noise control mode.” This means the green light will be on until a verbatim volume of background noise is reached. At that point the amber light flashes. If the noise level increases further the red light turns on and there is an audible siren. The target decibel levels are adjustable and can be set to account for ambient background noise, and the audible alarm can be switched on or off. Condition: Like new

Classroom traffic light (noise sensors and alarm) in Waterloo

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