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Mallory Sonalert

Type of APS
Pedhead mounted
  • VSB 110-1
  • VSB 110-2
The Mallory Sonalert is a component that is usually mounted inside a pedestrian signal head.

Standard features
WALK indication
  • Cuckoo - 800 Hz and 1200 Hz, every 1.5 secs
  • Chirp - 2000 Hz, every 1 sec
  • Pushbutton Locator tone (locator signal)
  • Automatic volume adjustment
  • Separate volume control for locator tone and WALK signal
  • Actuation indicator -LED and tone or speech message (acknowledgement message)
  • Pushbutton information message
  • Intelligent Pedestrian Sensor Circuit for use with an independent sensor or controller.
Optional features

Installation notes
Usually mounted inside the pedestrian signal head, wired to the WALK indication.

No automatic volume adjustment.

Mallory also sells sound generators in various beeps, siren and chime sounds; these are not recommended sounds for use as APS

Mallory Sonalert Products, Inc., Indianapolis, IN

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