Alertus Mobile High Power Speaker Arrays (MHPSA)
The Alertus Mobile High Power Speaker Array provides siren tones and crystal-clear voice messaging capability from a flexible mobile trailer. In an emergency, the Alertus MHPSA can be pulled with a standard trailer hitch and deployed in less than 15 minutes.





Alertus MHPSA Key Features
Breakthrough Text-to-Speech (TTS) Technology: Industry-leading text-to-speech technology provides enunciated emergency notifications, pre-recorded messages, and live voice paging
No installation required: Pull the MHPSA to your desired location and begin broadcasting notifications within minutes
Reusable: Bring your Alertus MHPSA to seasonal events or move it as needed depending on the emergency
Expandable: Multiple MHPSAs can be added to cover a large area
Integrated: Easily integrates with other alerting solutions
Trailer Features
Trailer hitch: Pulled with vehicle
Easy-to-use: Swing-out grade leveling outrigger stabilizer jacks
Two Wheels: Built for easy placement and maneuverability
High-altitude hand crank
Durable paint
Outdoor Notification Use Cases
Purpose-built to serve at-risk and critical spaces such as staging areas, field bases, and pop-up medical facilities, the Alertus Mobile High Power Speaker Array is ideal for command and control of units and as a temporary public address system during emergencies. The MHPSA is suitable for a wide range of outdoor applications, including:
Sports fields
Firework displays
Evacuations
Community alerts
Imminent threat notices
Festivals
Carnivals
Crowd control
Shark sightings/warnings
Natural disaster announcements
MHPSA Specifications & Capabilities
The Alertus MHPSA can be used as a standalone unit or part of an integrated and distributed warning system utilizing multiple MHPSAs, depending on your organizational needs.
Electrical Power
High Efficiency: 10A, 350W Universal AC input battery charger (110-220VAC)
Input Power: 24vdc, using sets of two 12V maintenance-free batteries
Intelligent Battery Charging: Optimization based on modern algorithms to prolong battery life
Solar Panel (Optional): 200 Watt Panel
Generator: AC generator with diesel or gas reservoir
Audio
Audio Output Power: 300W, 600W, 900W, 1200W
Intelligibility: Crystal-clear voice messages that come with a library of tones
Communication
Analog & digital radio communication
Secure hardwired IP connectivity
Digital modem (GPRS or Satellite)
Redundant communication modalities
Operational Characteristics
Over 90% energy efficient
Working temperature range of -40°C to 85°C
Stainless steel cabinet featuring separate vented battery and electronics compartments
Intelligent Status Monitoring
Self-monitoring and reporting capabilities, including AC status, solar panel status, charger status, communication link status, battery status, amplifiers status, speaker status, and intrusion detection
High current/short circuit; high-temperature protection
Enhanced automatic testing routines
Internal memory storage of all events related to siren activities