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 Speakers
When a fire breaks out, these speakers broadcast instructions. Connect them to your fire detection system and use your control panel to program the message. These speakers help you comply with NFPA 72 standards for fire alarm systems.
All speakers must be mounted to an outlet box: use an existing box in your facility, add an outlet box (sold separately), or choose a speaker that includes an outlet box.
Speakers rated NEMA 3R are sealed to protect the wiring from dust, rain, and temperature swings. NEMA 4X-rated speakers come mounted in a sealed outlet box. A gasket protects them from dust, heavy rain, temperature swings, and washdowns.
Speakers with fire letter plates have legible text regardless of how you mount them. They have removable plates with text on both sides—one vertical, the other horizontal.
Speakers | Outlet Boxes | Replacement Fire Letter Plates | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mounting Location | Voltage | Current | Volume | Message | Dia. | Ht. | Wd. | Dp. | Material | Knockout Trade Size | Fasteners Included | Color | Includes | Specifications Met | Each | Each | Pair | |||
Indoor | ||||||||||||||||||||
| Wall | 24V DC | 0.16 A @ 24 V DC | 75-87 dBA @ 10 ft. | Fire | __ | 6 1/4" | 4 1/2" | 1 1/2" | Plastic | __ | Yes | Red | __ | UL 464, UL 1480, UL 1971, ULC-S526, ULC-S541, California Fire Marshal Approved, ADA Compliant, NFPA 72 | 8721N11 | 000000 | 71695K13 | 00000 | ______ | 00 |
| Ceiling | 24V DC | 0.16 A @ 24 V DC | 75-87 dBA @ 10 ft. | Fire | 6 1/4" | __ | __ | 1 7/8" | Plastic | __ | Yes | Red | __ | UL 464, UL 1480, UL 1971, ULC-S526, ULC-S541, California Fire Marshal Approved, ADA Compliant, NFPA 72 | 8721N12 | 00000 | 71695K13 | 0000 | ______ | 00 |
Outdoor (IP54, NEMA 3R) | ||||||||||||||||||||
| Wall, Ceiling | 24V DC | 0.2 A @ 24 V DC | 76-94 dBA @ 10 ft. | Fire | __ | 7 3/4" | 5 3/4" | 1 3/4" | Plastic | __ | Yes | Red | Fire Letter Plates | UL 1480, UL 1638, California Fire Marshal Approved, FM Approved, ADA Compliant, NFPA 72 | 8721N21 | 000000 | 71695K13 | 0000 | 8733N17 | 00000 |
Outdoor, Washdown (IP66, NEMA 4X) | ||||||||||||||||||||
| Wall, Ceiling | 24V DC | 0.2 A @ 24 V DC | 76-94 dBA @ 10 ft. | Fire | __ | 8" | 6 1/2" | 4 3/8" | Plastic | 3/4 | Yes | Red | Fire Letter Plates, Outlet Box | UL 1480, UL 1638, California Fire Marshal Approved, FM Approved, ADA Compliant, NFPA 72 | 8721N22 | 000000 | ______ | 00 | 8733N17 | 0000 |