hss Engineering are specialist in Early Warning Systems
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Datasheets and manuals :        (in pdf) - Get Acrobat Reader
 Product
 E-2010 Central Station ControlDatasheetInstallation Manual-
 E-747 EncoderDatasheetInstallation Manual-
 E-969 EncoderDatasheetInstallation Manual-
 Giant Voice Deployable UnitDatasheet--
 Giant VoiceŽ EMS SOFTWAREDatasheet--
 Giant VoiceŽ Explosion Proof Speaker 60WattDatasheet--
 Giant VoiceŽ GV291Datasheet--
 Giant VoiceŽ GV292Datasheet--
 Giant VoiceŽ GV293Datasheet--
 Giant VoiceŽ GV294Datasheet--
 Giant VoiceŽ Mobile UnitDatasheet--
 Giant VoiceŽ Paging InterfaceDatasheet--
 Giant VoiceŽ PCU2010RDatasheet--
 GIANT VOICEŽ Radio Base StationDatasheet--
 GV-EXSTDatasheet--
 GVSP-100 SPEAKERDatasheet--
 GVSP-15Datasheet--
 HORNETDatasheetInstallation Manual-
 ISB SeriesDatasheet--
 Multi-message digital recording moduleDatasheet--
 PT2010---
 Rotating Warning LightDatasheet--
 SDPTS -Siren Diagnostic and Programming SoftwareDatasheet--
 Tsunami WarningDatasheet--
 TWS291 SeriesDatasheetInstallation ManualOperation Manual
 TWS292 SeriesDatasheetInstallation ManualOperation Manual
 TWS293 SeriesDatasheetInstallation ManualOperation Manual
 TWS294 seriesDatasheetInstallation ManualOperation Manual
 TWS295 SeriesDatasheetInstallation ManualOperation Manual
 TWS400Datasheet--
 VA-2000 Monitor and Message DisplayDatasheet--
 VA-300 Alert MonitorDatasheet--
 VORTEXR1Datasheet--
 VORTEXR2Datasheet--
 VORTEXR3Datasheet--
 VORTEXR4Datasheet--
 WPS-2900 SERIESDatasheetInstallation ManualOperation Manual
 WPS-2901DatasheetInstallation ManualOperation Manual
 WPS-2902DatasheetInstallation ManualOperation Manual
 WPS-2903DatasheetInstallation ManualOperation Manual
 WPS-2904DatasheetInstallation ManualOperation Manual
 WPS-2905DatasheetInstallation ManualOperation Manual
 WPS-2906DatasheetInstallation ManualOperation Manual
 WPS-2907DatasheetInstallation ManualOperation Manual
 WPS-2908DatasheetInstallation ManualOperation Manual
 WPS-2909DatasheetInstallation ManualOperation Manual
 WPS-2910DatasheetInstallation ManualOperation Manual
 WPS4003DatasheetInstallation ManualOperation Manual
 WPS4004DatasheetInstallation ManualOperation Manual

Articles:
Giant Voice sirens warn all
GiantVoice On-site Repair and Maintenance
Sircover
The Basic Physics of Siren Acoustics
Warning Tones
Warranty