Dazer II stops barking dogs - safely and quietly.
The DAZER produces an ultrasonic output from a scanning disc at 115 dB at 0.5 meter reference. The sound pressure level is well below the threshold levels for pain for dogs. This frequency range is at 25 KHz ( + or - 2 KHz), humans can hear to about 14 KHz, dogs as high as 40 KHz. The benefit is to provide a startle effect, called an alpha wave interruption - (like when a human hears a smoke alarm -their hearing is not affected), the dogs’ reaction is deterred from the source of the strange sound.