Red hand-crank siren, portable manual alarm for school troops, 120dB alarm

Features:

1. Portable alarm, easy to use, simply turn the handle to trigger the alarm.
2. The sound of the handheld siren was so loud that it could be heard up to a quarter mile away.
3. The casing is made of durable metal for maximum strength and durability.
4. Widely used in factories, schools, troops, natural disasters, and by seaside guards, etc., it 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: Hand Crank Siren
Operation Type: Manually Operated
Sound Type: Siren
Construction: Metal Casing
Size: Width: Approx. 5.51 inches Height: approx. 9.09 inches Depth: approx. 7.95 inches
Decibel: 120 dB
Size: approx. 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. Comprising 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 to 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 volume depends on the speed of the hand movement.
4. In terms of style and purpose, it is divided into fixed hand alarms and portable hand alarms.
5. The crank alarm is lightweight, easy to carry, can be detached, and the handle will trigger the 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 this is acceptable to you before ordering.