System Sensor has released low frequency sounder/strobes.

[Nathan]

@tsscman123

@Netscape128

That’s interesting to see a low-pitched horn/strobe again. While electromechanical horns might not be used again, hopefully these will be found around town.

Those are designed to be used in living areas, I don’t think they will appear around town much, except in hotels, and facilities that have people sleeping.

@Nathan

I bet there made like chime strobes

It could have a small speaker, like the kind found in laptops. If not, it has a giant piezo.

Yep It could be I wonder if they have tone selection