Plot# R-128, Sec. 11/C-3, North Karachi
Tel: (+92) 336 284 5890


HomeShopFire Alarm SystemHand Operated Siren

Hand Operated Siren


Hand Operated Siren is not electrically powered warning device to provide effective sound signal warning to fit virtually any signaling application and alert need, Powered by rotation the handle, this model has a plate to shut off the sound once up to speed giving it the ability to produce different tones.



Hand Operated Siren

Details / Descriptions:

The Hand Operated Siren or Manual Siren is designed to provide effective warning in applications where there is no power supply such as camp sites, civil defense, mountain rescue and coast guard warning.

Powered by rotating the handle, this siren has a plate to shut off the sound once up to speed giving it the ability to produce three different tones.


  • Can be mounted on flat surface and on the wall Sound Rating: 120±2dB(A) @1M
  • Output Frequency: 600±20Hz (Dependent on Rotation Speed)
  • Sound range: 1500M
  • No power supply required
  • Powerful low frequency sound
  • Universally recognized signal
  • Shutter mechanism to provide a choice of signals: continuous and warble


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Hasan Inspection & Testing Service

We as an NDT Services and Lifting Equipment and Accessories Inspection Company strive to satisfy internal and external system improvement, procedures and inspection technology by learning from each other.

Plot No# R-128 Sector 11/C-3, Sir Syed Town, North Karachi
(+92) 336 284 5890
(+92) 334 204 8248

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