[POWERFUL STRIKING] Pure copper electric coil ensures strong, stable performance with no electromagnetic interference. [DURABLE MATERIALS] Stainless steel construction resists rust and deformation for long-lasting use. [LOUD & CLEAR SOUND] Non-sparking bell delivers a powerful sound for large areas. [EASY INSTALLATION] Simple setup without complicated tools for convenient use. [VERSATILE APPLICATION] Ideal for industrial facilities, schools, and homes as a signal or alarm., Manufacturer: Jelquix