https://www.youtube.com/watch?v=L_RqCJ9XDwA
met up with Burns and Harman for this awesome siren test with storms to the south of where we were in downtown Avilla, IN. watch the siren jolt each time the siren starts each cycle. original video was 18 minutes long, so I edited down to where we seee a good part of the test
owner of a Sentry F2 4 Model D's 2 Model L's 4 Model A's A Model J a Sireno Model D, Edwards Model F and a Western Cullen Hayes Mechanical Bell