About Sound Levels
To choose an alarm or speaker that’s loud enough, first determine the decibel (dB) rating of background noise.
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Fire Alarm Bells
When a fire starts, these bells ring loudly to warn you. They’re often mounted near sprinkler systems to help emergency responders locate the water hookup. Connect these bells to your fire detection system, and a signal from your control panel will set them off. They’ll ring as long as the signal is active—their motor vibrates to continuously strike the bell. They help you comply with NFPA 72 standards for fire alarm systems.
All bells can be used indoors or outdoors. Add an outlet box (sold separately) to mount the bell indoors, or mount to an existing outlet box. Outdoor outlet boxes (sold separately) are lined with gaskets that seal water out and protect the wiring from temperature swings.

Bells | Outlet Boxes | Outdoor Outlet Boxes | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dia. | Current | Volume | Environment | Color | Material | Fasteners Included | Specifications Met | Each | Each | Each | |||
24V DC | |||||||||||||
| 6" | 0.03 A @ 24 V DC | 92 dBA @ 10 ft. | Indoor, Outdoor | Red | Enamel-Coated Aluminum | Yes | UL 464, ULC-S525, California Fire Marshal Approved, FM Approved, NFPA 72 | 49565T15 | 000000 | 71695K41 | 00000 | 59835T34 | 000000 |
| 10" | 0.03 A @ 24 V DC | 92 dBA @ 10 ft. | Indoor, Outdoor | Red | Enamel-Coated Aluminum | Yes | UL 464, ULC-S525, California Fire Marshal Approved, FM Approved, NFPA 72 | 49565T16 | 00000 | 71695K41 | 0000 | 59835T34 | 00000 |
120V AC | |||||||||||||
| 6" | 0.05 A @ 120 V AC | 99 dBA @ 10 ft. | Indoor, Outdoor | Red | Powder-Coated Steel | Yes | UL 464, ULC Listed, California Fire Marshal Approved, NFPA 72 | 49565T11 | 00000 | 71695K41 | 0000 | 49565T14 | 00000 |
| 8" | 0.05 A @ 120 V AC | 99 dBA @ 10 ft. | Indoor, Outdoor | Red | Powder-Coated Steel | Yes | UL 464, ULC Listed, California Fire Marshal Approved, NFPA 72 | 49565T12 | 00000 | 71695K41 | 0000 | 49565T14 | 00000 |
| 10" | 0.05 A @ 120 V AC | 99 dBA @ 10 ft. | Indoor, Outdoor | Red | Powder-Coated Steel | Yes | UL 464, ULC Listed, California Fire Marshal Approved, NFPA 72 | 49565T13 | 00000 | 71695K41 | 0000 | 49565T14 | 00000 |
| Bell Guard | 5684T46 | Each | 000000 |

























