The manual hand siren is a large device used to make a loud sound. It is operated by hand and does not require electricity to work. The siren’s purpose is to alert people of a dangerous situation or to get their attention in case of an emergency. Its big size helps the sound to travel far and reach many people at once. When activated, the siren emits a piercing sound that can be heard from a distance, ensuring that people are alerted quickly and can take necessary action to stay safe.

The manual hand siren is a large device used to make a loud sound. It is operated by hand and does not require electricity to work. The siren’s purpose is to alert people of a dangerous situation or to get their attention in case of an emergency. Its big size helps the sound to travel far and reach many people at once. In situations where there is limited access to electricity or when immediate attention is needed, the manual hand siren proves to be a reliable tool for effectively communicating warnings and ensuring public safety.