The Global Leader in Long Range Acoustic Hailing Devices

Mass Notification & Emergency Warning

Campus P.A. & Emergency Notification

Severe weather, active shooter incidents, bomb threats, hazardous material events and other crisis situations highlight the need for improved campus communication systems that combine public address and emergency notification.

Older campus emergency warning systems degrade over time and have critical gaps in coverage, particularly the absence of highly intelligible voice messages containing lifesaving information and instructions during emergency situations.

The LRAD Difference

LRAD ONE VOICE® systems warn and communicate critical information to students,staff and faculty not receiving automated phone calls, emails, text messages, social media and other emergency notification measures by broadcasting warning sirens and exceptionally clear voice messages up to 5.3 sq. kilometers from a single installation.

Directionality & Range

LRAD broadcasts are safely optimized to the primary human hearing range of 1 – 5 kHz and can be focused in a 15° – 60° pattern or transmitted omnidirectionally 360° for uniform message coverage. LRAD systems range from hand portable units to permanent installations for every type of campus public address and emergency communication situation.

360X_area_range_college-01In crisis situations, fear-fueled actions can lead to chaos. Broadcasting clear voice messages, instructions and information can lead to safer, more orderly reactions, ease panic and save lives.
By maintaining a smooth frequency response with an intensity variation of less than 5dB, LRAD has overcome the limitations of competitor systems by preventing audio fading and producing clear, unambiguous communication across all broadcast frequencies.

Clearly heard and understood over crowd and traffic noise, LRAD ONE VOICE™ systems provide a superior communications capability for general announcements and crisis situations.

In emergency situations, LRAD ONE VOICE systems:
  • Issue early warnings and instructions when an incident or approaching severe weather requires students, faculty and employees to evacuate
  • Initiate evacuation/shelter in place protocols
  • Provide flexible coverage – Broadcast notifications and instructions to a specific location or over large areas
  • Give on-scene commanders the capability to quickly and simultaneously coordinate first responders’ actions and response
  • Provide clear, concise directions to students and fans to avoid confusion and violence
  • Communicate to crowds in support of traffic control for athletic events and other large gatherings
  • Create large standoff/safety zones to create peaceful outcomes to volatile situations
During active shooter incidents, LRAD life safety systems:
  • Initiate the notification process from entry control points. After a threat is detected, campus security and law enforcement employ LRAD systems to broadcast messages and instructions campus-wide or only to the threat area
  • Distract the shooter using LRAD’s warning tone to draw attention away from students, faculty and employees
  • Provide instructions over a wide area or communicate to multiple sites simultaneously
  • Easily integrated into gunfire alert systems to automatically initiate pre-recorded LRAD broadcasts
  • Provide additional time for campus security and law enforcement personnel to respond – Officer response times are typically between 4 – 6 minutes. A shooter with a semi-automatic weapon can fire multiple rounds in a matter of seconds.
  • Calm and reassure those affected in the immediate aftermath of an emergency, and provide information and instructions to parents, friends and emergency responders rushing into an incident area

When local infrastructure fails, LRAD serves as a life safety system to broadcast notifications and instructions. Mobile LRAD systems are self-contained and do not rely on external power or communication infrastructure.

LRAD acoustic solutions are widely recognized for their reliability, affordability, effectiveness and safety.

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