Outdoor Warning Sirens

Outdoor warning sirens, known to most people as severe weather sirens or tornado sirens, are one of the most effective ways to inform the public of dangerous weather conditions and other emergencies. This is true across the United States, especially in tornado-prone states like Oklahoma, Kansas, Nebraska, South Dakota, Texas, Missouri, and Iowa. And with the different financing options available, including U.S. Homeland Security Grants and U.S.D.A. Grants, the time to get an emergency signaling system has never been better.

Sentry Siren specializes providing state-of-the-art warning siren systems for communities, schools, and businesses around the world. Within our outdoor warning siren product line, there are two basic product categories:

  • Electro-mechanical warning sirens

  • Electronic / Giant Voice warning sirens

When it comes to providing a warning signal / siren tone over a large geographic area, or in areas with high ambient background noise, there is no better solution than Sentry's omni-directional, electro-mechanical warning sirens. Using the toughest continuous-duty motors available, our true 360 degree sound output pattern will provide the most cost-effective wide-area siren signal available. And keep in mind what FEMA says about omni-directional versus rotating sirens:

OMNI-DIRECTIONAL DEVICES:

  • ..present a distinct advantage.. over rotational devices,” according to FEMA’s warning system guide.  It says “a rotational device will have an overall lower dB level when assessed across a given time period than an Omni-directional device operating at the same frequency. Additionally, because sound has a reinforcing effect, Omni-directional devices can act as sound “boosters” with adjacent audible devices.”    (4.4.5 FEMA OWS Technical Bulletin 2.0) 

  • Further, the guide states: “Omni-directional sirens provide a greater area of coverage than do rotating or directional devices. They provide a more constant signal that improves public alerting, therefore Omni-directional sirens can be used to good advantage in areas with high population density and in areas with high ambient noise levels.”  (4.4.5 FEMA OWS Technical Bulletin 2.0)

For applications that require a pre-recorded voice message to communicate immediate and specific instructions to an impacted population, Sentry's VR series Giant Voice sirens provide clear and intelligible voice messaging and siren tones with the highest Speech Transmission Index (STI) rating available in the industry.

Please explore our comprehensive emergency siren solutions below and Contact Us to put us to work for you!

emergency siren
  • 107dB(C)

  • 5HP AC continuous duty motor

  • Single Phase and Three Phase

  • Estimated 1,700 ft. effective range / coverage radius

  • 460Hz broadcast frequency

3V8

Priced From:

$3,536.32

emergency siren
  • 109dB(C)

  • 5HP AC continuous duty motor

  • Single Phase and Three Phase

  • Estimated 2,000 ft. effective range / coverage radius

  • 460Hz broadcast frequency

3V8-H

Priced From:

$3,786.93

emergency siren
  • 116dB(C)

  • 4HP DC continuous duty motor

  • 48VDC

  • DC primary operation

  • Estimated 3,400 ft. effective range / coverage radius

  • 460Hz broadcast frequency

3V8-H-B

Priced From:

$8,066.05

severe weather siren
  • 112dB(C)

  • 7.5HP AC continuous duty motor

  • Single Phase and Three Phase

  • Estimated 2,800 ft. effective range / coverage radius

  • 460Hz broadcast frequency

7V8

Priced From:

$4,670.00

severe weather siren
  • 115dB(C)

  • 10HP AC continuous duty motor

  • Single Phase and Three Phase

  • Estimated 3,300 ft. effective range / coverage radius

  • 460Hz broadcast frequency

10V

Priced From:

$5,077.06

severe weather siren
  • 121dB(C)

  • 8HP DC continuous duty motor

  • 72VDC

  • AC/DC battery backup operation

  • Estimated 4,000 ft. effective range / coverage radius

  • 460Hz broadcast frequency

7V8-B AC/DC

Priced From:

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outdoor warning sirens for sale
  • 120dB(C)

  • 10HP AC continuous duty motor

  • Three Phase only

  • Estimated 4,000 ft. effective range / coverage radius

  • Dual rotor - 460Hz / 920 Hz broadcast frequency

10V2T

Priced From:

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outdoor warning sirens for sale
  • 124dB(C)

  • 15HP continuous duty motor

  • Single Phase and Three Phase

  • Estimated 5,000 ft. effective range / coverage radius

  • Dual rotor - 460Hz / 920Hz broadcast frequency

15V2T

Priced From:

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outdoor warning sirens for sale
  • 125dB(C)

  • 20HP continuous duty motor

  • Single Phase and Three Phase

  • Estimated 5,200 ft. effective range / coverage radius

  • Dual rotor - 460Hz broadcast frequency (460Hz/920Hz two tone configuration available)

20V1T

Priced From:

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tornado siren

14V / 14V-B

  • 127dB(C)

  • 15HP AC (14V)

  • 14HP DC (14V-B) continuous duty motor

  • Three Phase only (14V)

  • 72VDC (14V-B)

  • AC/DC battery backup operation (14V-B)

  • Estimated 5,400 ft. effective range / coverage radius

  • 600Hz broadcast frequency

Priced From:

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tornado siren

16V1T-B AC/DC

  • 129dB(C)

  • 16HP DC continuous duty motors

  • 72VDC

  • AC/DC battery backup operation

  • Estimated 5,600 ft. effective range / coverage radius

  • Dual rotor - 460Hz broadcast frequency

Priced From:

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tornado siren

40V2T

  • 131dB(C)

  • 40HP AC continuous duty motor

  • Three Phase only

  • Estimated 6,100 ft. effective range / coverage radius

  • Dual rotor - 600Hz / 800Hz broadcast frequency

Priced From:

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