Fire Alarm Bell Manual Switch Multi Size 4 "Home Security Mall Office Fire Alarm Red Button Alarm Protection Power Supply Fire Alarm Bell Protection Power Supply 220v Ac Power Manual Switch

Features: 1.It is suitable for use on fire alarm equipment in factories, warehouses, hotels, and various large and medium-sized buildings. 2.Pure copper electromagnetic coil with discontinuity and no electromagnetic interference 3.Stable operation and long service life. 4.Hard metal shell, not easy to deform, the sound reaches 100Decibel, and it is farther and safer. 5.When an alarm is needed, just press the position on the start panel (press the alarm), and the button will immediately output an alarm signal.