Electric Alarm Bell Door 4in 100mm Fire Home for School Factory Agencies
- Pure copper electric coil, with intermittent, no electromagnetic interference, powerful striking, stable performance and long service life.
- Stainless steel material, electroplated surface, sturdy, not easy to deform, antirust and durable.
- Non-sparking bell, provide loud and clear sound, which has long transmission.
- Easy and fast installation, no need complicated tools, convenient for using.
- Widely used, applicable to industrial and mining enterprises, organizations, public places schools for calling or notification signals, also can be used as family doorbell, alarm and other use.
