Simplex 2901-9838 Fire Alarm Horn With Simplex 4251-20 T-Bar Pull Station

[@aidanthetoiletelevatorfire7554]

Awesome horn!

[@chasethecarguy]

Cool I have one but it’s higher pitched

[@ResetTheFireAlarm]

I have that horn!!

[@prism_2903]

Nice! I have the same alarms except my horn has a silver diaphragm

[@ZacharyHappy366]

How do you change the pitch on simplex horns?

[@Connor_2006]

You can change the pitch on the 9806. FrostedStrobes has a video where he shows how you can adjust the pitch and volume of the 9806.
ua-cam.com/video/VhHmnkWI7hw/v-deo.htmlfeature=shared