The Model 80223 Sonalert provides a 2,900 Hz tone at 80dB for use as an auditory stimulus.
The Model 80223 Sonalert Auditory Stimulus System provides a 2,800Hz tone at 80dB for use as an auditory stimulus. Amplitude can be adjusted by varying the voltage supplied. This unit is supplied with an "L" shaped bracket designed to hang on the 80221 or 80221A Stimulus Light.
