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VSO Base Sounder 24Vdc EN54-3 Approved

VSO Base Sounder 24Vdc EN54-3 Approved

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Product details

The VSO EN54-3 approved base sounder has been designed for use with conventional and two wire (SAV-Wire) fire alarm sytems, it is able to accept most leading detector bases, giving you a cost effective solution to your sounder installation. The VSO has a low profile base sounder and comes with 32 selectable tones as standard, it also has the option to offer a change over from Alert to Evacuation tone- when installed using the three core cable.

The VSO sounder has been approved to EN54-3 by the LPCB and VdS, the tones comply with the most common sound patterns and frequencies and are fully synchronised.

A blank cover plate is available so the unit can be used as a standalone sounder.


  • 32 selectable tones
  • Alert to Evacuation changeover via third wire
  • Switch selecable volume control
  • Designed to work with conventional and two-wire (SAV-WIRE) systems
  • Fully approved to EN54-3 by LPCB and VdS
  • Modern ultra low profile for discreet mounting
  • Designed to accept most leading detector bases
  • ABS fire retardant plastic
  • Colour options available


Colour: White
Plate: 32 Tone
507-001 £14.29
Colour: White
Plate: Cover Plate
507-006 £2.92
Colour: Cream
Plate: 32 Tone
507-020 £19.08
Colour: Cream
Plate: Cover Plate
507-029 £8.71
Colour: Red
Plate: Cover Plate
507-030 £3.60

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