Rotary Manual Bell Expand

Hand Operated Manual Siren (King'ora)



Hand operated sirens don't need power supply and powered by rotating the handle.

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Hand operated sirens has a plate to shut off the sound once up to speed giving it the ability to produce different tones.It is used to provide emergency population warning of approaching danger and sometimes indicate when the danger has passed. Some are used to call the volunteer fire department to go fight a fire.


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Zeta Alarms Limited (Formerly GLT Exports Limited) was founded in 1985 and is a privately held UK manufacturer of early warning fire detection systems. Our brand name Zeta Alarm Systems is well known throughout the industry and is acclaimed in over forty countries worldwide. We are currently represented in the UK, Europe, Africa, the Middle East, Southern Asia & South America and this list continues to grow.
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