GP Range

The GP range of conventional motor powered sirens provides a basic solution to address wide area mass alert signalling for all industrial, civil, commercial and environmental requirements.
The products are of simple rugged construction and provide a low frequency traditional air raid siren sound. 


  • Audibility range between 135db @ 1 metre, (105db @ 30metres) for the smallest unit to 145db @ 1 metre, (115db @ 30metres for the largest unit. Sirens in this range in increasing order of sound output are the GP6, GP10 & GP12 units.
  • 475Hz constant tone signal for the GP6 & GP10 sirens and a combined 475/560Hz constant tone signal for the GP12 siren.
  • Roughly omni-directional sound coverage which peaks in the direction of the front stator face
  • 400Vac +/- 10% 50Hz 3 phase nominal power supply requirement. (Alternative voltages and frequencies available on request).
  • Operating temperature range for the standard GP6 & GP10 units of -20 to +60 degrees C and for the GP12 -20 to +55 degrees C.
  • Cast aluminium & steel construction.
  • Environmental rating of IP55.
  • If the power supply to the sirens is pulsed to enable the siren to produce a ‘wail’ tone then the maximum run time of the siren is reduced from continuous for constant tone to 15 minutes.
  • Control units can be supplied to enable the siren to produce the ‘wail’ tone signal with associated control switches.
  • If mounted in a climate where icing can occur the unit should be fitted with thermostatically controlled heaters.
  • The Motor windings are tropicalized as standard.
  • Anti-condensation heaters for the motor can be supplied.