https://www.youtube.com/watch?v=2-7Sf5ji1XU
This past saturday, went to St Joseph county MI for their siren test. Like stated in description, the county had a tough time testing them. 12:04 came around the tones came through. nothing. so after while the FD walks out and I asked about the test and he stated it shoulda tested and that they would try again. 12:12 comes around the tones came on, and a few seconds later it finally went off
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