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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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Trumpet-Style Horns
Electric horns produce a continuous signal; for a noncontinuous signal interrupt the voltage from the power supply.
The 304 stainless steel horns have excellent corrosion resistance.
Air-powered horns operate without electricity.
Electric Powered Horns for Outdoor Use
Electric (304 Stainless Steel)
Electric (Aluminum/Brass)
Mounting Holes | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Voltage | Current | Volume | Lg. | Wd. | Ht. | Material | Conduit Size | Thread Type | Gender | Fasteners Included | No. of | Dia. | Specifications Met | Each | |
With 2 Wire Leads | |||||||||||||||
| 12V DC | 4 A @ 12 V DC | 120 dB @ 1 m | 16 1/2" | 4" | 4 3/4" | 304 Stainless Steel | __ | __ | __ | No | 4 | 1/4" | __ | 0000000 | 0000000 |
| 24V DC | 2 A @ 24 V DC | 120 dB @ 1 m | 16 1/2" | 4" | 4 3/4" | 304 Stainless Steel | __ | __ | __ | No | 4 | 1/4" | __ | 0000000 | 000000 |
| 24V DC | 3 A @ 24 V DC | 106 dBA @ 10 ft. | 19 3/4" | 8" | 8" | Aluminum/Brass | 1/2 | NPT | Female | No | 2 | 3/8" | FM Approved | 0000000 | 000000 |
With 3 Wire Leads | |||||||||||||||
| 120V AC | 0.75 A @ 120 V AC | 105 dBA @ 10 ft. | 19 3/4" | 8" | 8" | Aluminum/Brass | 1/2 | NPT | Female | No | 2 | 3/8" | CSA Certified, FM Approved, UL Listed | 0000000 | 000000 |
Air Powered Horns for Outdoor Use
Air Powered
Mounting Holes | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Volume | Sound Pattern | Lg. | Wd. | Ht. | Material | Air Consumption | Operating Pressure | Conduit Size | Thread Type | Gender | Fasteners Included | No. of | Dia. | Each | |
| 139 dBA @ 1 m | Continuous | 10 1/8" | 6 3/4" | 8 5/8" | Aluminum | 0.5 cfs @ 100 psi | 50-150 psi | 1/2 | NPT | Female | No | 4 | 9/16" | 0000000 | 0000000 |
| 131 dBA @ 1 m | Continuous | 17 1/8" | 6 3/4" | 6 7/8" | Brass/Bronze | 0.2 cfs @ 100 psi | 50-200 psi | 1/8 | NPT | Female | No | 2 | 5/16" | 0000000 | 000000 |
Dual Trumpet-Style Horns
Electric horns produce a continuous signal; for a noncontinuous signal interrupt the voltage from the power supply. They are 304 stainless steel and have excellent corrosion resistance.
Air-powered horns operate without electricity.
Electric Powered Horns for Outdoor Use
Air Powered Horns for Outdoor Use
Air Powered
Mounting Holes | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Volume | Lg. | Wd. | Ht. | Material | Air Consumption | Operating Pressure | Conduit Size | Thread Type | Gender | Fasteners Included | No. of | Dia. | Each | |
| 133 dBA @ 3.3 ft. | 22 3/4" | 11 5/8" | 7 1/4" | Brass/Bronze | 0.3 cfs @ 100 psi | 50-200 psi | 1/8 | NPT | Female | No | 4 | 5/16" | 0000000 | 0000000 |