Air Raid Siren Klaxon SO4 125dB@1m

Air Raid Siren Klaxon SO4 125dB@1m

Klaxon Siren SO4 is a rugged motor driven warning siren.

Designed for outdoor warning over small/medium areas

Key Features

Sound Output Continuous Rating High sound output up to 125 dB (A)
Voltages available 230V AC/DC
Sound Frequenzy 900Hz Powerful low frequency sound
Weather Rating IP55
Origin Made in UK
Coverage 360 degree sound projection
Siren Type Motorised
Product type Air Raid warning sound siren

Features & Applications


  • SO4 is a continuous rated weatherproof motor driven siren with a powerful low frequenzy with easy vertical mounting.
  • Designed for outdoor warning over small and medium areas.
  • Air raid siren sound.
  • Manufactured from cast aluminum, it has a rugged exterior construction and is built for various applications that require a long-life outdoor quality-built siren.
  • Warning Siren.



Process machine conveyors warning, general and fire warning alerts, safety and industrial warnings alerts. Warning Siren.

Technical Specifications

Name Klaxon SO4 motorised siren
Sound Output Continuous Rating up to 125 dB (A)
Voltages 230V AC/DC
Current 1.4A(AC)
Construction Cast Aluminium Body
Operating Temp Operating Temp: -30ºC to +45ºC
Cable Entry Cable Entry 1
Weight 4.5kg

We distribute Australia-wide

Sirens & Horns is based in Brisbane, Queensland but we distribute our products all across Australia and can send select products across to New Zealand and Papua New Guinea.

Get started with a free quote.

Get in touch with our team to get a free quote. We’re happy to talk through your needs with you to help you find the best product for your application.