Regular price $375.00
  • Free shipping on most items over $200
  • We have 15+ years of industry experience
  • GSA, Net 30 and purchase orders available
Shipping calculated at checkout.


Siren Operated Sensor 

Fire/Police/EMS/911 responders open gates with Siren's "Yelp" in 2.5 seconds (all sirens in 4.5)

The SOS will open gates to emergency vehicles with the yelp signal. It has a convenient sensitivity feature that allows you to change the sensitivity based on the distance on the gate to the road. So that a emergency vehicle driving down the road doesn't accidentally open the gate. This emergency gate access system allows you to sleep safe with peace of mind.

Totally hands free with no codes to remember or keys to lose. A reminder decal on the gate tells responder to hold siren on for swift entry.


  • Operates on 12 to 24 Volts, AC or DC
  • The SOS uses an omni-directional microphone with no alignment necessary
  • Sealed weather proof enclosure, 3" x 6" x 2"
  • Audio range sensitivity adjustable
  • Momentary or 15 minute relay hold function

All in stock orders typically ship the same business days or within 1-2 business days.  Cut off for same day shipping is 2:30PM Central Time.


Items with lead times typically ship in 4-7 business days.


Orders with free shipping may have longer lead times due to those items being shipped the most economical way.  Free shipping on most orders over $195.00 does not include gate operators, loop sealant, and any extreme length or weight items

Our return policy lasts for only 30 days. If 30 days have gone by since your purchase, unfortunately we can’t offer you a refund. Some items such as Gate Operators or custom parts may not be returnable or carry a restocking fee if returned.

Read return policies

Protec Controls accepts purchase orders please contact us.

NET 30

We also support Net 30 terms on our website for easy ordering. Please fill out the form to the right with your company information and we will get your account setup to place Net 30 orders.


Protec Controls accepts GSA SmartPay cards along with all major credit cards. For government quotes and purchase orders please email

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