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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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Panel-Mount Miniature Buzzers
A
B
C
Styles A and C are also known as piezo buzzers.
For Styles B and C, the volume increases as voltage increases.
Buzzers with a pulse tone alternate on/off to draw greater attention than buzzers with a continuous tone.
Buzzers with both a continuous and pulse tone can be wired to trigger two alerts, each corresponding to a different warning. If the continuous and pulse tone are both triggered at the same time, only the continuous tone will sound.
Mounting Holes | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Style | Voltage | Current | Volume | Sound Pattern | For Panel Cutout Dia. | Dia. | Dp. | Material | Fasteners Included | No. of | Dia. | Specifications Met | Each | |
With Screw Terminals | ||||||||||||||
| A | 1-28V DC | 0.015 A @ 24 V DC | 95 dB @ 10 ft. | Continuous | 1 1/8" | 1 3/4" | 1 3/4" | Plastic | __ | __ | __ | __ | 00000000 | 000000 |
| A | 3-15V DC | 0.02 A @ 12 V DC | 90 dBA @ 30 cm. | Pulse | 1 1/8" | 1 3/4" | 1 3/4" | Plastic | __ | __ | __ | __ | 00000000 | 00000 |
| A | 3-28V DC | 0.04 A @ 24 V DC | 96 dBA @ 30 cm. | Continuous | 1 1/8" | 1 3/4" | 1 3/4" | Plastic | __ | __ | __ | __ | 00000000 | 00000 |
| A | 4-16V DC | 0.02 A @ 12 V DC | 90 dBA @ 30 cm. | Fast Pulse | 1 1/8" | 1 3/4" | 1 3/4" | Plastic | __ | __ | __ | __ | 00000000 | 00000 |
| A | 4-28V DC | 0.022 A @ 24 V DC | 80 dBA @ 30 cm. | Fast Pulse | 1 1/8" | 1 3/4" | 1 3/4" | Plastic | __ | __ | __ | __ | 00000000 | 00000 |
| A | 4-28V DC | 0.022 A @ 24 V DC | 80 dBA @ 30 cm. | Pulse | 1 1/8" | 1 3/4" | 1 3/4" | Plastic | __ | __ | __ | __ | 00000000 | 00000 |
| A | 4-28V DC | 0.03 A @ 24 V DC 0.04 A @ 24 V DC | 86 dBA @ 30 cm. | Continuous, Pulse | 1 1/8" | 1 3/4" | 1 3/4" | Plastic | __ | __ | __ | __ | 00000000 | 00000 |
| A | 30-120V AC | 0.03 A @ 110 V AC | 80 dBA @ 30 cm. | Pulse | 1 1/8" | 1 3/4" | 2 3/8" | Plastic | __ | __ | __ | __ | 00000000 | 00000 |
| A | 30-120V AC | 0.03 A @ 120 V AC | 90 dBA @ 30 cm. | Continuous | 1 1/8" | 1 3/4" | 2 3/8" | Plastic | __ | __ | __ | __ | 00000000 | 00000 |
| A | 60-250V AC | 0.03 A @ 240 V AC | 90 dBA @ 30 cm. | Continuous | 1 1/8" | 1 3/4" | 2 3/8" | Plastic | __ | __ | __ | __ | 00000000 | 00000 |
| A | 60-250V AC | 0.03 A @ 240 V AC | 80 dBA @ 30 cm. | Pulse | 1 1/8" | 1 3/4" | 2 3/8" | Plastic | __ | __ | __ | __ | 00000000 | 00000 |
| B | 6-28V DC | 0.018 A @ 24 V DC 0.01 A @ 12 V DC | 65 dBA @ 10 ft. | Continuous | 1 1/8" | 1 1/2" | 1 3/4" | Plastic | __ | __ | __ | __ | 0000000 | 00000 |
| B | 6-28V DC | 0.018 A @ 24 V DC 0.01 A @ 12 V DC | 65 dBA @ 10 ft. | Pulse | 1 1/8" | 1 1/2" | 1 3/4" | Plastic | __ | __ | __ | __ | 0000000 | 00000 |
With 2 Wire Leads | ||||||||||||||
| C | 5-28V DC | 0.02 A @ 24 V DC | 62-84 dB @ 10 ft. | Continuous | 1 1/4" | 1 1/2" | 1" | Plastic | No | 2 | 0.13" | __ | 0000000 | 00000 |
| C | 5-28V DC | 0.02 A @ 28 V DC | 48-80 dB @ 10 ft. | Continuous | 3/4" | 1" | 3/4" | Plastic | No | 2 | 0.13" | UL Recognized Component | 0000000 | 00000 |
With 3 Wire Leads | ||||||||||||||
| C | 5-28V DC | 0.02 A @ 24 V DC | 62-84 dB @ 10 ft. | Continuous, Pulse | 1 1/4" | 1 1/2" | 1" | Plastic | No | 2 | 0.13" | __ | 0000000 | 00000 |
Surface-Mount Miniature Buzzers
A
B
C
D
Mounting Holes | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Style | Voltage | Current | Volume | Sound Pattern | Dia. | Ht. | Wd. | Dp. | Material | Fasteners Included | No. of | Dia. | Thread Size | Includes | Each | |
With Lug Terminals | ||||||||||||||||
| A | 12V AC | 0.013 A @ 240 V AC | 74 dBA @ 1 m | Continuous | __ | 1 1/4" | 1" | 7/8" | Plastic | No | 1 | __ | 6-32 | Mounting Bracket | 00000000 | 000000 |
| A | 12V AC | 0.025 A @ 120 V AC | 74 dBA @ 1 m | Continuous | __ | 1 1/4" | 1" | 7/8" | Plastic | No | 1 | __ | 6-32 | Mounting Bracket | 00000000 | 00000 |
| A | 12V AC | 0.125 A @ 24 V AC | 74 dBA @ 1 m | Continuous | __ | 1 1/4" | 1" | 7/8" | Plastic | No | 1 | __ | 6-32 | Mounting Bracket | 00000000 | 00000 |
| A | 12V AC | 0.25 A @ 12 V AC | 74 dBA @ 1 m | Continuous | __ | 1 1/4" | 1" | 7/8" | Plastic | No | 1 | __ | 6-32 | Mounting Bracket | 00000000 | 00000 |
With 2 Wire Leads | ||||||||||||||||
| B | 3-15V DC | 0.01 A @ 12 V DC | 90 dBA @ 30 cm. | Continuous | __ | 1 3/4" | 1 1/8" | 7/8" | Plastic | No | 2 | 0.14" | __ | __ | 00000000 | 0000 |
| C | 9-15V DC | 0.025 A @ 12 V DC | 76 dBA @ 20 cm. | Continuous | __ | 1 1/4" | 5/8" | 5/8" | Plastic | No | 2 | 0.1" | __ | __ | 00000000 | 0000 |
| C | 15-27V DC | 0.03 A @ 24 V DC | 76 dBA @ 20 cm. | Continuous | __ | 1 1/4" | 5/8" | 5/8" | Plastic | No | 2 | 0.1" | __ | __ | 00000000 | 0000 |
| D | 120V AC | 0.04 A @ 120 V AC | 86 dBA @ 10 ft. | Continuous | 2 1/8" | __ | __ | 1 1/4" | Steel | No | 1 | __ | 8-32 | Mounting Bracket | 0000000 | 00000 |
With 1 Wire Leads | ||||||||||||||||
| D | 12V DC | 0.07 A @ 12 V DC | 86 dBA @ 10 ft. | Continuous | 2 1/8" | __ | __ | 1 1/4" | Steel | No | 1 | __ | 8-32 | Mounting Bracket | 0000000 | 00000 |
Surface-Mount Buzzers
Surface mount using an outlet box (sold separately).
| Voltage | Current | Volume | Sound Pattern | Dia. | Dp. | Material | Fasteners Included | Includes | Specifications Met | Each | |
With Screw Terminals | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 24V AC | 0.25 A @ 24 V AC | 70 dBA @ 10 ft. | Continuous | 5 1/8" | 2 1/4" | Epoxy-Coated Steel | Yes | Mounting Plate | FM Approved, UL Listed | 000000000 | 0000000 |
| 24V DC | 0.15 A @ 24 V DC | 62 dBA @ 10 ft. | Continuous | 5 1/8" | 2 1/4" | Epoxy-Coated Steel | Yes | Mounting Plate | __ | 00000000 | 000000 |
| 120V AC | 0.05 A @ 120 V AC | 70 dBA @ 10 ft. | Continuous | 5 1/8" | 2 1/4" | Epoxy-Coated Steel | Yes | Mounting Plate | FM Approved, UL Listed | 000000000 | 000000 |
| Outlet Box | 00000000 | Each | 00000 |
Hazardous Location Buzzers
Buzzers are UL Listed for Class I, Divisions 1 and 2, Groups B, C, and D; Class II, Divisions 1 and 2, Groups E, F, and G; and Class III, Divisions 1 and 2 environments where flammable gases, combustible dust, and combustible fibers may be present.
Mounting Holes | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Voltage | Current | Volume | Sound Pattern | Ht. | Wd. | Dp. | Material | Conduit Size | Thread Type | Fasteners Included | No. of | Dia. | Includes | Each | |
With 3 Wire Leads | |||||||||||||||
| 24V DC | 0.16 A @ 24 V DC | 97 dBA @ 10 ft. | Continuous | 7 5/8" | 7 3/8" | 4 1/4" | Zinc | 3/4 | NPT | No | 2 | 3/8" | Two Mounting Brackets | 0000000 | 000000000 |
| 120V AC | 0.13 A @ 120 V AC | 100 dBA @ 10 ft. | Continuous | 7 5/8" | 7 3/8" | 4 1/4" | Zinc | 3/4 | NPT | No | 2 | 3/8" | Two Mounting Brackets | 0000000 | 00000000 |
Buzzers
A
B
C
Mount Style A and B buzzers using outlet boxes (sold separately).
| Voltage | Current | Volume | Sound Pattern | Ht. | Wd. | Dp. | Material | Fasteners Included | Includes | For Panel Cutout Height | For Panel Cutout Width | UL File Number | Each | ||
With 2 Wire Leads | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| A | 24V AC | 0.63 A @ 24 V AC | 78-103 dBA @ 10 ft. | Continuous | 6 1/2" | 6 1/2" | 1 1/4" | Zinc | Yes | Mounting Plate | 4 3/16" | 4 3/16" | E4186 | 0000000 | 0000000 |
| A | 120V AC | 0.13 A @ 120 V AC | 78-103 dBA @ 10 ft. | Continuous | 6 1/2" | 6 1/2" | 1 1/4" | Zinc | Yes | Mounting Plate | 4 3/16" | 4 3/16" | E4186 | 0000000 | 000000 |
| B | 120V AC | 0.18 A @ 120 V AC | 94-100 dB @ 10 ft. | Continuous | 4 1/16" | 4 1/16" | 2 1/8" | Zinc | Yes | __ | __ | __ | __ | 0000000 | 000000 |
With 4 Wire Leads | |||||||||||||||
| C | 24V DC | 0.22 A @ 24 V DC | 99 dBA @ 10 ft. | Continuous | 4 1/8" | 4 1/8" | 2 7/8" | Polycarbonate | Yes | __ | 3 1/8" | 3 1/8" | __ | 0000000 | 000000 |
With Screw Terminals | |||||||||||||||
| B | 24V AC | 0.63 A @ 24 V AC | 78-103 dBA @ 10 ft. | Continuous | 5" | 5" | 2 1/8" | Zinc | Yes | Mounting Plate | __ | __ | E4186 | 0000000 | 000000 |
Water Overflow Buzzers
When water contacts the sensor, it triggers a buzzer to alert personnel to a leak or overflow hazard. Frequently used to monitor sinks, pipe lines, tubs, and sump pumps.
| Volume | Sound Pattern | Ht. | Wd. | Dp. | Cord Lg., ft. | Material | Batteries Included | No. of Batteries Required | Battery Size | Includes | Each | |
| 96 dB @ 1 ft. | Pulse | 3 1/4" | 2 1/4" | 7/8" | 5 | Plastic | No | 3 | AAA | Hook and Loop Mounting Tape | 0000000 | 000000 |
Multiple-Tone Buzzers
| Voltage | Current | Volume | Environment | Sound Pattern | Ht. | Wd. | Dp. | Material | Fasteners Included | Specifications Met | Each | |
With 2 Wire Leads | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
Washdown Buzzers
Buzzers meet NEMA 4X for protection and corrosion resistance in washdown environments.
Panel Mount
Panel Mount
| Voltage | Current | Volume | Sound Pattern | Ht. | Wd. | Dp. | Material | For Panel Cutout Ht. | For Panel Cutout Wd. | Fasteners Included | Environmental Rating | Each | |
With 2 Wire Leads | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 24V AC | 0.9 A @ 24 V AC | 94-100 dB @ 10 ft. | Continuous | 5 5/8" | 5 5/8" | 2 3/8" | Zinc | 3 1/8" | 3 1/8" | Yes | NEMA 12, NEMA 4X | 0000000 | 0000000 |
| 120V AC | 0.22 A @ 120 V AC | 94-100 dB @ 10 ft. | Continuous | 5 5/8" | 5 5/8" | 2 3/8" | Zinc | 3 1/8" | 3 1/8" | Yes | NEMA 12, NEMA 4X | 0000000 | 000000 |
With 4 Wire Leads | |||||||||||||
| 24V DC | 0.25 A @ 24 V DC | 99 dBA @ 10 ft. | Continuous | 4 1/8" | 4 1/8" | 2 7/8" | Polycarbonate | 3 1/8" | 3 1/8" | Yes | NEMA 4X | 0000000 | 000000 |
Surface Mount
Surface Mount
| Voltage | Current | Volume | Sound Pattern | Ht. | Wd. | Dp. | Material | Conduit Size | Thread Type | Fasteners Included | Includes | Environmental Rating | Each | |
With Screw Terminals | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 120V AC | 0.18 A @ 120 V AC | 94-100 dB @ 10 ft. | Continuous | 4 1/2" | 4 1/2" | 3 3/8" | Aluminum | 3/4 | NPT | Yes | Outlet Box | NEMA 4X | 0000000 | 0000000 |
With 2 Wire Leads | ||||||||||||||
| 24V AC | 0.9 A @ 24 V AC | 94-100 dB @ 10 ft. | Continuous | 4 1/2" | 6" | 3 5/8" | Zinc | 1/2, 3/4 | NPT | Yes | Outlet Box | NEMA 4X | 0000000 | 000000 |
With 4 Wire Leads | ||||||||||||||
| 24V DC | 0.25 A @ 24 V DC | 99 dBA @ 10 ft. | Continuous | 4 3/8" | 5" | 3 7/8" | Polycarbonate | 3/4 | NPT | Yes | Outlet Box | NEMA 4X | 0000000 | 000000 |