Howler Alert Alarm Push On/Off (HSA1)


Howler HSA1 Site Alert with robust design for use in building sites that require a reliable temporary alarm.


  • Cost-effective, robust design
  • Built-in strobe for noisy environments
  • Battery operated – doesn’t require mains power
  • Simple on/off switch
  • Automatic battery test facility
  • Clear signage
  • Can be connected with up to 20 other units

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