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Fortress Indoor/Outdoor Strobe Siren 140 dB (315 MHz)
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Fortress Indoor/Outdoor Strobe Siren 140 dB (315 MHz)

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  • No Contract
    or Monthly Charges
  • 3 Year
  • 30 Day
    Satisfaction Guarantee
  • Description
  • Specifications
  • Features

This loud siren (140db) can be mounted indoors or outdoors, and communicates wirelessly with the main panel, with a wireless range up to 150 feet. When the alarm is triggered and the siren sounds, it will scare off any intruders as well as alerting you, the neighbors, and anyone else nearby. The siren also includes a strobe light that flashes when the alarm is triggered.

The siren is weather resistant, so a little rain won’t hurt. Just make sure to avoid any pooling or standing water. The internal backup battery keeps the siren running if the power cuts out, and recharges automatically when the power comes back on.

  • Power Supply: 9V DC
  • 315MHz wireless signal
  • ~150 ft. wireless range
  • 140 decibels
  • Internal backup battery
  • 140 decibel siren with strobe light
  • 315MHz wireless frequency
  • ~150 ft. wireless range
  • Mounts indoors or outdoors (avoid areas where water collects)
  • Plugs into wall outlet for power (110-220V input)
  • Internal backup battery

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Fortress Indoor/Outdoor Strobe Siren 140 dB (315 MHz) Description

Compatible with Total Security 315MHz, S02, and GSM.

Not Compatible with Total Security 433 MHz, or with Total Security WiFi

A VERY loud, externally or internally mountable siren, this alarm certainly catches the attention of anyone within earshot. When triggered, a red strobe light will flash and a very loud 140dB alarm will sound. The connection to the control panel is totally wireless and uses a 110v wall plug with an internal backup battery. Alert neighbors and passers-by to a security breach with this strobe siren. Mounted on the outside of your home or office, it is loud enough both to deter any intruder and to alert others of a break in. Maximum wireless range of 150 feet. 315 MHz wireless signal.

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ratings 4.7 Overall Satisfaction Rating Based on 374 Ratings from Actual Customers
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Ken L


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Eduard P

Quick, painless and easy. GREAT online customer support to answer any questions.

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Gary E

Fast, smooth, and easy.

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Harold U

Great web site with lots of information for decision making

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Fortress Indoor/Outdoor Strobe Siren 140 dB (315 MHz)

Can I use this on my GMS system


Thank you for reaching out to us! Yes, this siren is compatible with the GSM system.


when the alarm is triggered, it sounds are continuous , can this be timed.


Hi, Brian, By default, our sirens go off for one minute when the alarm is triggered, but this time can be configured in all of our systems! For system-specific instruction, feel free to give us a call or send us an email, or refer to our instructions manuals posted online! Thanks, Amanda


What ways can I trigger this? Can I plug into a smart outlet so it starts screaming as soon as it turns "on" (gets power) ?


Hi Sharath, Thanks for your inquiry. Unfortunately you will not be able to use the siren that way. You can however purchase the 433 mhz version of the siren and pair it to the remote fob so you can turn the siren on and off by pressing a button. The 433 mhz version of the siren can be found here: The compatible remote fob can be found here: I hope this helps and please let us know if you have any other questions, thanks