SUDEG Hand Crank Siren Horn Portable 120dB Manual Operated Metal Alarm Air Raid Emergency Safety Alarm for Schools Troops Alarming ,SY-200A/Green

• Basic Product Information : This is a portable hand crank siren horn, model SY-200A, in green. It is a manually operated metal alarm device with a sound output of 120dB, designed for emergency safety alarming purposes. Suitable for various settings where immediate and reliable alarm signals are needed, it serves as a practical tool in emergency situations.
• Core Performance Features : The SY-200 hand-cranked siren boasts several key performance advantages. It has a high frequency, strong sound penetration, and a long transmission range. Additionally, it is easy to operate, labor-saving, convenient to store and carry, and can be fixed when necessary. Its compact structure, small volume, and light weight further enhance its practicality.
• Operation Method and Advantages : This hand crank alarm requires no power supply, making it effective even in places without electricity. To achieve the desired alarm effect, simply shake the handle clockwise manually at a primary speed of 2000 revolutions per minute. This operation produces a majestic sound with a large shock and long wavelength. In situations where power and traffic are blocked, and other mobile alarms cannot reach the area, this portable and practical hand crank alarm becomes exceptionally useful.
• Wide Application Scenarios : The siren is widely used in a variety of settings, including factories, schools, open-air military camps, mountain rescue operations, anti-ship ships, ships, mines, plains, pastures, gas stations, airports, forest farms, and hotels. Its versatility ensures it can meet the alarm needs of different environments and emergency situations.
• Technical Parameters : The technical specifications of this siren are as follows: sound output is 120 ± 2 dB; audio frequency is 600 ± 20 HZ; and the transmission range is 2000 meters in diameter (Φm). These parameters guarantee its ability to deliver clear and far-reaching alarm signals when in use.

Specifications: Type:SY-200A handheld siren Material: aluminum alloy Operation: manual hand lever operation Color:Green Sound output: 120 ± 2 (dB) Audio frequency: 600 ± 20 (HZ) Transmission range: 2000 (Φm) Height: 36 cm Package size: 37*23.5*22cm Package weight: 4.3kg Scope of delivery: 1 x Handheld Siren