Thread: Who makes this siren and what is the model

I am sure someone has already posted this thread but I have no idea where to start. Several California (as seen on cops, etc) have sirens that change several tones (I believe Sacramento PD is one of them) without touching anything. It seems to go from wail to yelp to something I cannot describe. Any thoughts? Thanks.

Federal Signal Touchmaster Delta and Unitrol both change tones, kind of sounds like a slot machine.

Always liked that changing sound. Thanks again. Now; who has one for sale?

Originally Posted by jswwjw

Always liked that changing sound. Thanks again. Now; who has one for sale?

Yea I think it sounds really good. Haha no problem but I would post an ad in the wanted section if you are trying to get one

Sac Pd & SO both use the Unitrol TM4 and its an option called "sweep" option

I thought the only allowed tones in California were wail and yelp.

Originally Posted by markko

I thought the only allowed tones in California were wail and yelp.

Your right but they're only used in the sweep funtion on the UTM4.

Heres one I found at a good price $75. I had already bought one when I found this one or I would order it.

Lot of Equipment for sale new and use Updated 1/24

I personally like the unitrol 8100 series with the u-90 amp, or the original unitrol touch master siren, the deltas aren't as good