Applicable Occasions -- Bell Alarm is an electric bell that does not produce sparks and is suitable for industrial and mining enterprises, government agencies, schools, and public places for call or notification signals, as well as for home chime and alarm applications. High Quality Material -- Weatherproof alarm with stainless steel and baked enamel construction. Hard metal shell resistant to deformation. Pure copper electromagnetic coil with no discontinuity and minimal electromagnetic interference, ensuring powerful striking and stable operation. Large Volume -- Emergency evacuation, school service, and fire alarm bell produces a sound level of up to 100dB, providing wide coverage and enhanced safety. Easy to Install -- Wired power supply allows for simple installation on walls, ceilings, or other surfaces. Portable wired design supports flexible mounting options. Durable carbide shell resists deformation. Sound output reaches 95dB with a coverage area of 600-800 square meters, offering extended range and reliability. Suitable for use in fire rescue, emergency evacuation, factory alarms, doorbells, schools, and similar environments. Available in 24V DC and 220V AC models—select the appropriate voltage based on your system requirements. Electric bell Electric bell AC 220V Electric bell DC 24V