1127 Visual Alerter

Relay Activated LED Visual Alerter for Telephone & Notification Alerting

The Algo 1127 Visual Alerter is an attractive high-performing LED light that provides visual indication of telephone (e.g. ring, in-use, message waiting) and notification events where a relay or audio detection is available.

The 1127 is available in red, blue and green, and features four selectable flash patterns. The light is perfect for office environments where it may sit on the desktop, mount vertically or horizontally, or be located remotely. Constructed with 18 high-intensity LEDs, the 1127 provides a softly diffused light that is highly visible in all directions.

Direct activation is by relay input or audio detection. The light is compatible with the 1825PM Duet Plus, and all variety of Algo IP speakers. A 24V power supply is included with the product. .

Typical Applications

Visual indication of being on a call (in-use)

  • Headset users (Receptionists, Agents)
  • Workers in cubicle environments
  • Hands-free call-in-progress "on air" notification
  • Notification to family for Telecommuters

Visual Ring Indication

  • Noisy environments
  • Noise-sensitive environments (e.g., hospital, theatre, church)
  • Line identification

Visual Message Waiting Indication

  • Notification for on premise mobile workers
  • Telecommuters


  • Highly visible yet softly diffused light
  • Four selectable flash patterns
  • 18 high-intensity LEDs available in three different colors: red, blue, and green
  • Compatible with Algo 1825PM, 8180, 8186 and 8188 speakers
  • Easy installation and mounting on a wall or ceiling

1127 Visual Alerter


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