Federal Signal 500-DH-TT Siren Test - Calhan, CO (May 4, 2018)

Here is the town of Calhan conducting the annual test of their outdoor warning siren. This siren is tested on the first Friday in May at 2pm. I was at work and could not attend, but my dad drove out there to record the test. Calhan has a very old (and rare) Federal Signal 500-DH-TT, which is now, the only one in operation in the entire state. The test consisted of 3 One minute alert signals then ended by a 3 minute alert signal. Siren starts: 0:23 3 minute alert signal: 4:50 Enjoy! Do Not Copy Content in This Video