Hormann HLS 273
| Hormann HLS 273 | |
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| Company | Hormann |
|---|---|
| Produced | mid 1970s-mid 1980s |
| Type | Pneumatic |
| Sound output | 124 |
The HLS-273 is the last type of pneumatic siren made by German manufacture Hormann gmbH. It was an even more improved F-71 by use of a smaller head and had either a diesel or electric powered air compressor and generator. This is the most common pneumatic siren in Germany and there is at least 30+ still in service. The downside is that it is not as loud as the F-71.
