HAND CRANK OPERATION: Easy to operate, just turn the handle to sound the alarm. The volume can be adjusted by the rotation speed of the handle.
High premium: The housing and handle are made of durable plastic with extra metal support to create a sturdy, yet lightweight structure for portability.
EASY TO CARRY: The handle and lever fold into a compact size to fit in a small bag or pouch, convenient for you to carry the siren with you whenever you need it.
APPLICATION: Widely used in factories, schools, troops, natural disasters, and seaside guards, etc. can effectively provide timely warnings during incidents.


