This is an old video that was once uploaded on this channel. You can hear it doing some weird High Low/Alert thing. Recorded: July, 2018 ... https://www.youtube.com/watch?v=7Jmd5N-eicY
This Is A 3T22 Mounted On The Roof Of My Local Fire Department Luckly It Does HI Lo UPDATE: It does not do High Low Anymore.
Location:https://www.google.com/maps/@38.1435829,-85.6263782,3a,55.2y,111.35h,102.59t/data=!3m7!1e1!3m5!1sOIaVOKVz2xn-r9jmfL2KQQ!2e0!5s20170101T000000!7i13312!8i6656
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https://www.youtube.com/watch?v=O3UgrJdoYyo