Hand-cranked alarms should only be used in emergency situations.

Hand-crank alarms can be used under "Emergency Conditions"; the operation and maintenance of the hand-crank alarms should be conducted as per the instructions in the manual; upon an emergency, those nearby should immediately pull the alarm; after hearing the alarm, all employees should quickly gather in the "Emergency Evacuation Area"; the daily maintenance and management of the hand-crank alarms are the responsibility of the factory office.

Cangzhou Yasheng Machinery Manufacturing Co., Ltd. is a high-tech enterprise engaged in the research, development, production, and sales of alarm products such as air raid sirens and electric alarms. Our hand-crank and electric alarms utilize dual-purpose AC/DC sirens, enabling them to handle various emergency situations.