Portable manual crank siren - 120DB alarm, red, for schools/teams/alert signals

Features:

1. Portable alarm, easy to use, just turn the handle to trigger the alarm.
2. The sound of the portable manual siren was so loud that it could be heard 1/4 mile away.
3. The housing is made of durable metal for maximum strength and durability.
4. Widely used in factories, schools, troops, natural disasters and seaside guards, etc. can effectively provide timely warnings during incidents.
5. Small in size, easy to carry and store, convenient to use and with good performance.

Specifications:

Item Type: Crank Siren
Operation Type: Hand Operated
Sound Type: Siren
Construction: Metal Housing
Size: Width: Approx. 5.51 inch Height: approx. 9.09 inches Depth: Approx.7.95 inches
Decibel: 120 dB
Size: approximately 11 cm/4.3 inches
23 cm/9.1 inches
Product Description:
1.The portable alarm is a hand-cranked siren that does not require electrical support.It is called by different names due to local variations.
2.Including a handle, a speed increase mechanism, a slider, a fixed wheel, a ringing wheel, a sound window cover, a gearbox, and a gearbox frame, the handle is connected to the drive shaft of the speed increase mechanism and the output shaft of the speed increase mechanism.The pin passes through and is connected to the sliding block, and the sliding block is connected to the wheel flange by friction drive.
3. No electrical support is needed; power is supplied by shaking the handle to trigger the alarm signal.The sound level depends on the speed of the hand movement.
4.In terms of style and purpose, it is divided into fixed manual alarms and portable manual alarms.
5.The crank alarm is lightweight, easy to carry, can be detached, and the handle will trigger an alarm.
6.Widely used in factories, schools, troops, special flood control, natural disasters, open barracks, air defense, and other emergency situations.
7. Can effectively provide timely early warning during an incident and reduce property damage and casualties.

Package List:1 x Crank Siren
Note:Please note that the new and old types of this product will be sent randomly, and make sure you don't mind this before ordering.