Description
An 3″ (75mm) round silver aluminum bell typically refers to a motorized or solenoid-driven electric alarm bell used in schools, factories, and commercial fire alarm systems. These high-decibel units operate on standard AC or DC voltages to produce a loud, piercing ring.
Key Specifications
- Diameter: 75mm (3 inches)
- Material: Die-cast aluminum/bell metal for high acoustic volume and weather resistance
- Voltage: Typically AC 220V–240V or DC 24V
- Sound Output: Usually ranges between 95 dB to 97 dB
- Mounting: Surface or wall-mounted, indoor and outdoor compatible
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