Dioche 100mm 4in Electric Time Bell, No-Sparking Alarm for School Factory Agencies, All Purpose Door Bell for Schools Fire Alarm(DC24V)

High Performance: This electric use pure copper electric coil, with intermittent, no electromagnetic interference, powerful striking, stable performance and long service life. | Good Material: Electric Bell with stainless steel material, electroplated surface, sturdy, not easy to deform, antirust and . | High Quality: Non-sparking bell provide sound, which has long . | Easy to install: Fire Alarm can easy and fast install, no need complicated tools, convenient for using. | Widely used: bell applicable to industrial and mining enterprises, organizations, public places schools for calling or notification , also can be used as family doorbell, alarm and other use.