LK-100 hand-cranked siren 
 SPL: 110 ± 2 
 Output frequency: 550 ± 20 
 Weight: 1.2kg 
 Effective range: 500 meters 
 The average sound pressure level (Class A) 110 dB (1 m radius) 
 Products 

 Hand-cranked siren, hand-cranked siren used for emergency warning, and easy to carry its product, complete model is mainly used for flood control, disaster, forest fire, troops, military supplies, public and industrial applications to respond to emergency alarm use. 

 Is also a wild, outdoor tourism, forest protection, essential supplies. Personnel separated and the implementation of the assistance Assembly.