Fire Alarm Bells | McMaster-Carr

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22 Products

About Sound Levels

To choose an alarm or speaker that’s loud enough, first determine the decibel (dB) rating of background noise.

Surface mount using an outlet box (sold separately).

With Screw Terminals
Voltage	Current	Volume	Environment	Dia.	Material	Color	Fasteners Included	Specifications Met		Each
120V AC	0.12 A @ 120 V AC	86 dBA @ 10 ft.	Outdoor	6"	Aluminum	Red	Yes	UL Listed, C-UL Listed, FM Approved	00000000	0000000
120V AC	0.12 A @ 120 V AC	88 dBA @ 10 ft.	Outdoor	10"	Aluminum	Red	Yes	UL Listed, C-UL Listed, FM Approved	00000000	000000

Bell Guard	0000000	Each	000000
Outdoor Outlet Box	00000000	Each	00000
Outlet Box	00000000	Each	0000

Fire Alarms with Strobe Light

In addition to an audible signal, these alarms flash a high-intensity strobe to draw attention during fire emergencies.

Styles A and C have a strobe that helps comply with ADA standards for photosensitivity when properly installed.

Surface mount using an outlet box (sold separately for Styles A, B, and D).

Fire Alarms

With Screw Terminals
	Voltage	Current	Volume	Light Intensity, cp	Ht.	Wd.	Dp.	Material	Fasteners Included	Features	Specifications Met	Choose a Color		Each
A	24V DC	0.32 A @ 24 V DC	81-99 dBa @ 10 ft.	15/30/75/110/135/185	4 3/4"	2 3/4"	1 1/4"	Plastic	Yes	Eight Tones	California Fire Marshal Approved, ADA Compliant, UL 1638, UL 464, ULC-S525, ULC-S526	Red, White	0000000	0000000

Steel Outlet Box

00000000

Each

00000

Fire Alarms for Outdoor Use

With Screw Terminals
	Voltage	Current	Volume	Light Intensity, cp	Ht.	Wd.	Dp.	Material	Knockout Trade Size	Fasteners Included	Features	Specifications Met	Choose a Color		Each
B	120V AC	0.05 A @ 120 V AC	74-89 dBA @ 10 ft.	15	4 1/8"	4 1/8"	3 1/2"	Plastic	__	Yes	Eight Tones	UL Listed, California Fire Marshal Approved	Gray	00000000	000000
C	24V DC	0.19 A @ 24 V DC	100 dBA @ 10 ft.	75	5 3/4"	4 3/4"	4 3/16"	Plastic	1/2	Yes	Two Tones	UL Listed, California Fire Marshal Approved, ADA Compliant	Red, White	000000	000000
D	120V AC	0.05 A @ 120 V AC	74-89 dBA @ 10 ft.	15	4 1/8"	4 1/8"	3 1/2"	Plastic	__	Yes	Eight Tones	UL Listed, California Fire Marshal Approved	Red	00000000	00000

Red Aluminum Outlet Box	00000000	Each	000000
Steel Outlet Box	00000000	Each	0000

Fire Alarms

Surface mount using an outlet box (sold separately).

With Screw Terminals
	Voltage	Current	Volume	Environment	Ht.	Wd.	Dp.	Material	Color	Fasteners Included	Specifications Met		Each
A	12V DC 24V DC	0.11 A @ 24 V DC 0.18 A @ 12 V DC	80-92 dBA @ 10 ft.	Outdoor	5 1/8"	5 1/8"	2 1/8"	Plastic	Red	Yes	UL Listed, California Fire Marshal Approved	00000000	000000
A	12V DC 24V DC	0.11 A @ 24 V DC 0.18 A @ 12 V DC	80-92 dBA @ 10 ft.	Outdoor	5 1/8"	5 1/8"	2 1/8"	Plastic	White	Yes	UL Listed, California Fire Marshal Approved	00000000	00000
B	120V AC	0.05 A @ 120 V AC	75-88 dBA @ 10 ft.	Outdoor	4 1/8"	4 1/8"	2 1/8"	Plastic	Gray	Yes	UL Listed, California Fire Marshal Approved	00000000	00000
B	120V AC	0.05 A @ 120 V AC	75-88 dBA @ 10 ft.	Outdoor	4 1/8"	4 1/8"	2 1/8"	Plastic	Red	Yes	UL Listed, California Fire Marshal Approved	00000000	00000

Red Plastic Outlet Box	000000000	Each	000000
Steel Outlet Box	00000000	Each	0000
White Plastic Outlet Box	000000000	Each	00000
Red Aluminum Outlet Box	00000000	Each	00000

Adjustable-Volume Multiple-Tone Horns

												Mounting Holes
Voltage	Current	Volume	Sound Pattern	Ht.	Wd.	Dp.	Material	Conduit Size	Thread Type	Gender	Fasteners Included	No. of	Dia.		Each
With Screw Terminals
24V AC 24V DC	1.1 A @ 24 V AC 1.1 A @ 24 V DC	0-110 dBA @ 10 ft.	Continuous Pulse	12 1/2"	8"	8 1/2"	Aluminum	1/2	NPT	Female	No	2	3/16"	0000000	0000000
120V AC	0.3 A @ 120 V AC	0-110 dBA @ 10 ft.	Continuous Pulse	12 1/2"	8"	8 1/2"	Aluminum	1/2	NPT	Female	No	2	3/16"	0000000	000000

Multiple-Tone Buzzers

With 2 Wire Leads
Voltage	Current	Volume	Environment	Sound Pattern	Ht.	Wd.	Dp.	Material	Fasteners Included	Specifications Met		Each
24V AC 24V DC	0.07 A @ 24 V DC 0.22 A @ 24 V AC	88 dBA @ 10 ft.	Outdoor	Continuous	4 1/2"	4 1/2"	3 1/2"	Plastic	Yes	C-UL Listed, California Fire Marshal Approved, UL Listed	0000000	0000000
120V AC	0.04 A @ 120 V AC	88 dBA @ 10 ft.	Outdoor	Continuous	4 1/2"	4 1/2"	3 1/2"	Plastic	Yes	C-UL Listed, California Fire Marshal Approved, UL Listed	0000000	000000

Outdoor Outlet Box	00000000	Each	000000
Outlet Box	00000000	Each	0000