Mobil Directo: Difference between revisions

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{{Infobox siren
{{Infobox siren
|image=[[File:Mobil20directo20ad20195220sm.jpg|200px]]
|image=[[File:Mobil20directo20ad20195220sm.jpg|200px]]
|produced= ?-1967
|produced= ~1942-1967
|company= Biersach & Niedermeyer Co.
|company= Biersach & Niedermeyer Co.
|type= [[Electromechanical]]
|type= [[Electromechanical]]

Revision as of 15:55, 29 January 2018

Mobil Directo
Company Biersach & Niedermeyer Co.
Produced ~1942-1967
Type Electromechanical
Sound output 125 dBc at 100 feet
Succeeded by Allertor 125


The Mobil Directo was a siren manufactured by the Biersach & Niedermeyer Co. The siren came in two types. An Electric Motor Mobil Directo only came in a Dual Tone 10/12 port ratio. However, the Gas Motor Mobil Directo only came in an Single Tone 8 port ratio. Many gas motor units were eventually converted with an electric motor like the 10/12 port units. When the company evolved into Alerting Communicators of America the siren was evolved into the Allertor 125.