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Sonalert Attachment



ENV-223AM
Sonalert 2900 Hz Tone Module
ENV-223AM Sonalert Attachment

This 2,900 Hz tone generator is supplied on a ¼ modular panel with a screwdriver adjustable volume control. Units without volume control produce a piercing sound at greater than 85 dB with considerable variability between units. These units are factory set at approximately 65 dB.


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ENV-223HAM
Sonalert 4500 Hz Tone Module

This unit is identical to the ENV-223AM except it has a 4,500 Hz signal generator.  Use one of each for simple high/low tone discrimination.

 

ENV-323AW
Sonalert Tone Module - Mouse

This unit has the same 2900 Hz tone generator as the ENV-223AM with the tone generator mounted on a modular mouse panel. Volume may be adjusted with a screwdriver.



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