External Slave Sounder

£343.05

The External Slave Wireless Sounder extends your lockdown alarm outdoors, providing a loud siren and bright beacon in playgrounds, yards, car parks and external entrances. It links wirelessly to your Master Call Point and internal devices, giving you clear outdoor alerts without Wi-Fi or new mains cabling.

Outdoor Lockdown Alert

External Slave Sounder

External Slave Sounder

The External Slave Sounder extends mission-critical lockdown coverage to playgrounds, car parks, and high-traffic outdoor routes.

Outdoor environments are notoriously difficult to manage during high-stress incidents. This unit eliminates hesitation with high-output 100dB+ audio and synchronised site-wide activation. Operating entirely independent of Wi-Fi or building IT networks, it ensures a fail-safe response when seconds matter most.

Lockdown Alert Gallery

Experience the high-recognition tones and visual strobe patterns designed for complex outdoor environments.

Listen to Alerts

Architecture Overview

The External Slave Sounder is a robust, weather-resistant wireless unit engineered to bridge the gap between internal signaling and outdoor safety. It receives the same secure RF mesh signal as your indoor infrastructure, delivering a unified alert to car parks, playgrounds, and assembly zones.

Designed for rapid deployment, it completely avoids the need for trenching or disruptive external cabling. This allows educational estates and public venues to achieve total network independence, ensuring alerts remain operational even if building power or local IT networks are compromised.

Core Reliability Factors

  • Weatherproof Integrity: High-durability housing built to withstand the most severe UK environments.
  • Zero Network Reliance: Operates on a proprietary RF path – unaffected by Wi-Fi drops or data failures.
  • Synchronized Warning: Triggers in unison with internal units for a consistent whole-site instruction.

Key Capabilities

  • High-Impact Signaling: Optimized outdoor siren paired with a high-intensity visual strobe.
  • Proprietary RF Mesh: Secure tactical signaling independent of Wi-Fi, 4G, or building power.
  • Rapid Installation: Wireless design eliminates the high cost and disruption of trenching and cabling.
  • Protect Duty Alignment: Engineered for high-capacity public venues (200+) to meet Martyn’s Law requirements.

Technical Specification

  • System Type: Wireless Weather-Resistant Sounder/Beacon
  • Operating Frequency: 434.525 MHz Secure Mesh RF
  • Signal Range: Up to 1km (Line-of-Sight Coverage)
  • Power Architecture: Industrial D Cell or AA Battery Support
  • Device Capacity: Scalable up to 192 units per site code
  • Environment Rating: High-Resilience Exterior Housing
  • Compliance: Martyn’s Law (Protect Duty) Standards

Infrastructure Documentation

Dimensions

Schematic Dimensions

Academy Deployment

Perimeter Coverage

Venue Deployment

Public Venue Setup

UK Professional Support

Expert Consultation & Implementation

We specialize in wireless infrastructure for MATs, educational estates, and high-capacity public venues. From initial site mapping to professional installation and staff training, we ensure your outdoor signaling is mission-ready.

Strategic Infrastructure Partner for Multi-Academy Trusts (MATs).

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