YASONG 110dB Hand Crank Siren, Manual Portable Emergency Alarm Horn, No Power Required, Red or Green Color:Red and the siren can be

and the siren can be set to light-only

The YASONG SLA-05BZ one-button alarm siren combines a 0–130dB adjustable horn with a LED strobe warning light for farms

geological disaster warning areas and industrial security systems

ABS base and PS lampshade with IP44 protection

industrial sites and networked warning systems

YASONG 110dB Hand Crank Siren, Manual Portable Emergency Alarm Horn, No Power Required, Red or Green Color:Red and the siren can beThe 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. Manual hand crank operation with no power