Teho-Ulvo D Siren Series

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Teho-Ulvo series contains electronic outdoor warning sirens, created by the Finnish company Elektro-Arola Oy in 1991. The alarms from the high-power speakers are achieved using a computer-optimized program. Teho-Ulvo D consists of two parts: central unit with control and amplifier electronics and horn speaker set normally installed with a mast pipe.

Models

Model Image Speakers
D600 6-8
D1200 12-16
D1800 18-24
D2400 24 or 32

References

http://www.elektro-arola.fi/tehoulvod.aspx