100mm 4in Electric Time Bell No Sparking Alarm Stainless Steel Electric Bell Home Doorbells Internal Strike Bell for School Factory Agencies 220V - Sonew

• ✔BIG SOUND: Factory alarm bell has a solid metal shell, which is not easy to be deformed. The range is wide, which is safer and more practical. ✔ANTI-RUST DESIGN: The surface of the electric alarm bell is electroplated to make the material more resistant to . The first-class technology enables the electric bell to continue to operate under extreme conditions. ✔ ANTI-INTERFERENCE: The pure copper electromagnetic coil of Electric fire alarm is discontinuous, no electromagnetic interference, strong tapping force, stable and long service life. ✔EASY TO INSTALL: Internal strike bell has a portable wired power supply, easy to install, and can be installed on walls, ceilings and other places. ✔ WIDE RANGE OF APPLICATIONS: Home doorbells is suitable for industry and mining, government agencies, public places and equipment, and also used for home doorbells, alarms, etc.