Tue May 19, 2020 6:50 pm
nvanw27 wrote: ↑Tue May 19, 2020 6:18 pm
That's an actual tone from Whelen, and it's on an older controller, hence the weird pitch. When electronic sirens get low batteries, the pitch doesn't usually lower like it would on a mechanical siren.
Did Whelen even offer the alternate toneset on the old controllers?
~SirensOfNewYork
Amateur HVAC, Siren, Car, Plane, and security and fire alarm enthusiast
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