The Federal Signal 3T22 and 2T22 are dual-tone, mechanical outdoor warning sirens made by Federal Signal Corporation (formerly Federal Sign and Signal Corporation) from 1952 through the early 1990s. Both have a very recognizable design, with a ten-port rotor (chopper) on the bottom with ten cones (horns) and a 12-port one on top with twelve cones.

2025年1月5日 · The Model 2T22 and Model 3T22[1] (2 or 3 Tone, 22 horns/ports) are a pair of dual rotor omnidirectional sirens that were produced by Federal Signal over a span of nearly 40 years. These are some of the most well-known and iconic sirens with a distinctive sound and are still commonly found today.

The Federal Signal 3T22 / 2T22 was an outdoor warning siren made by Federal Signal Corporation (formerly Federal Sign and Signal Corporation) from 1952 through the early 1990s. It has a very recognizable design, having a ten-port rotor (chopper) on the bottom with ten cones (horns) and a 12-port one on top with twelve cones.

2022年6月4日 · The City of Moore, as for most of the Oklahoma City area, tests the outdoor warning sirens every Saturday @ 12PM, weather permitting, for three minutes of alert. They do test when it’s cloudy and...

The Federal 2T22 siren is a dual tone siren, which is made up of one 12 port siren (high tone) on top of another 10 port (low tone) siren with the electric motor in the middle. Federal added air valves to each siren air intake of the 2T22 siren to make it possible to alternately (or simultaneously) shut off the air to each air intake of the siren.

The 2T22 is an omnidirectional siren that was produced by Federal Signal Corporation from 1955 to 1992. They have two rotors producing two different tones at the same time, powered by a 10hp dual shaft motor. Both rotors measure 15 inches in diameter, and are identical to the rotors used on the Model 5 and 2001 sirens.

2012年12月1日 · Video of the weekly siren test in Moore, OK. This particular unit is located near the corner of SE 34th and Fairway. It is a Federal Signal 2T22. It was extr...

The 28th and Farnam Street FS 2T22 is gone, replaced by a Federal Signal 508-128. It is the last CD-era siren to be replaced in La Crosse, WI. It replaced on 8-30-2021 by ECS. I was glad I was...

The Federal 2T22 siren is a dual tone siren, which is essentially one siren on top of another siren with the siren motor in the middle. Federal added air valves to each air intake of the top and bottom parts of the 2T22 siren to make it possible to alternately (or simultaneously) shut off the air to each air intake of the siren.

The Federal Sign & Signal (now Federal Signal) 3T22 and 2T22 are a 10/12 port siren with a distinct 12 horns on top and 10 horns on the bottom, thus the 22 in XT22. The number in the siren name (2 or 3) in means the signal number, although these can be programmed to …