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WT4911R - DSC Alexor 2-Way Wireless Outdoor Siren & Strobe - Red

WT4911R - DSC Alexor 2-Way Wireless Outdoor Siren & Strobe - Red
Manufacturer:  DSC  SKU:  WT4911R
Rating: [1]   Write a Review | Read Reviews
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Price:  $107.14

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The Best Defense is a Good Offense

The WT4911 Wireless Outdoor Siren is a fully supervised wireless siren designed to work with the Alexor Wireless Panel. The WT4911 combines form and function to provide improved protection against intruders, before they get the chance to enter the home. With its powerful 105dB sounder, the WT4911 will enunciate unwanted entrance to property and premises. The accompanying strobe light also provides a visual warning and deterrent upon activation. The WT4911 distinguishes between burglar and fire alarm by emitting different sounds for each and indicates arm and disarm squawks.

Build Your Brand and Your Business

The WT4911 siren can be installed anywhere outdoors (or even indoors, for those requiring a louder siren) fast and easy. A large surface area on the siren allows for security company logos, increasing brand presence and awareness.

Secure, Continuous Communication with Added Benefits

The WT4911 offers 2-way wireless and continuously supervised communication with the Alexor Wireless Panel. The signals between the WT4911 and the panel are fully encrypted, prohibiting unauthorized interruption of communication between the two. If the WT4911 siren is disabled or tampered with, Alexor will immediately be signaled and the appropriate transmission will instantly be transmitted to the monitoring station. Additionally, one of the other sirens (either indoor or outdoor or Alexor's onboard siren itself) installed on the system will make up for the absence of the WT4911. Up to four sirens can be installed on the Alexor Wireless Panel.


  • Siren output is 105dB
  • Siren sounds for: Alarms & Squawks
  • Strobe light functionality to visually indicate alarms
  • Provides outdoor temperature reading to the WT5500 wireless keypad
  • Transmits module status including tamper and low battery
  • Fully supervised
  • Local and remote test capability
  • Case and wall tamper
  • Up to 4 sirens per system
  • Large print area for company logo
  • IP34 rating
Rating: (1.00)   # of Ratings: 1   

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1. Brad on 8/21/2013, said:

Purchased complete wireless system and all components work well with the exception of the optional outdoor siren. The battery issue is complicated and needs replaced on frequent intervals. The strobe light is not visible during daylight hours and the siren is not loud. The only functional aspect of this component is that it sends a consistent and accurate outside temperature to the control panel but that is not why I purchased the item. A complete waste of money as it is a poor performing unit.

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Dimensions 11"× 8.5"× 1.8" (280 mm× 216 mm× 46mm)
Weight 1.8 lbs (820g)
Output 105 dB
Battery 1 “D” cell Lithium
Battery 4 years (typical usage)
Wireless Range 984ft/300m Nominal Open Air
Operating Environment -30° to 155°F (-35° to 70°C)
Relative Humidity 5% to 95%
Installation Manual
Downloads: 0
Size: 1384136 KB