No Power Required
The siren works by manual hand cranking and does not require electricity, batteries, charging or wiring. It is suitable for emergency warning in places without power support.
Off-grid emergency warning
Off-grid emergency warning
Hold the siren firmly and rotate the handle to create the warning sound. The faster the handle is cranked, the louder the siren becomes.
Check the capabilities that matter before you choose a configuration.
The features that most directly affect how this model works and where it fits.
The siren works by manual hand cranking and does not require electricity, batteries, charging or wiring. It is suitable for emergency warning in places without power support.
The hand crank siren can reach up to 110dB. The sound level depends on the cranking speed, making it simple to control during use.
The siren is made of aluminum alloy with anti-rust paint on the surface. It is designed for durable use in public and industrial warning applications.
Quick technical checks before ordering.
The YASONG hand crank siren is a manual emergency warning horn designed for locations where power supply may not be available. It is suitable for factories, homes, schools, warehouses, flood control areas and temporary emergency warning use.
This model works by hand-operated cranking, so it does not require wiring, batteries or charging. The faster the handle is cranked, the louder the siren sound becomes.
This is an audible warning siren only and does not include LED strobe light, battery or remote control. Sound level depends on cranking speed.
If this control method or feature set is not what you need, start with the requirement that matters most.
Tell us your voltage, installation environment and preferred activation method. We can help you compare suitable options.