Loud Hailer Upgraded by Ultra Electronics-USSI

Press Release
Wednesday, November 28, 2012
HS-40 Loud Hailer: Image credit Ultra Electronic - USSI

Ultra Electronics – USSI release the upgraded HyperSpike® HS-40 Acoustic Hailing Device (AHD).

The HS-40 is significantly lighter, supporting a carbon fiber housing and acoustical more powerful than the original HS-40 which has been in production for the past three years.

The new and improved HS-40 will enhance acoustic performance in both intelligibility and acoustic output to become the loudest production AHD in the Ultra Electronics- USSI inventory.   

The HS-40 can produce over 163+ dB and can send voice messages and alert tones over 2000 meters. Not only can the HS-40 send clear messages over long distances, it can be heard with excellent intelligibility. The HS-40’s Speech Transmission Index (STI) rating is 0.91 out of 1.0. HyperSpike’s development team has made HyperSpike a market leader in the AHD market.

“With overwhelming customer demand, the HyperSpike team decided to design the next generation HS-40.” said James Martzall, Business Development for HyperSpike products


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