---
product_id: 11127263
title: "DIGITAL SECURITY CONTROLS DSC WT4911B 2 WAY WIRELESS OUTDOOR SIREN WITH BLUE STROBE"
brand: "dsc"
price: "£66.61"
currency: GBP
in_stock: true
reviews_count: 6
category: "Dsc"
url: https://www.desertcart.co.uk/products/11127263-digital-security-controls-dsc-wt4911b-2-way-wireless-outdoor-siren
store_origin: GB
region: United Kingdom
---

# Blue strobe visual alert 2-way wireless sync 105 dB piercing alert DIGITAL SECURITY CONTROLS DSC WT4911B 2 WAY WIRELESS OUTDOOR SIREN WITH BLUE STROBE

**Brand:** dsc
**Price:** £66.61
**Availability:** ✅ In Stock

## Summary

> 🚨 Stay ahead of threats with the WT4911B’s loud and clear security signal!

## Quick Answers

- **What is this?** DIGITAL SECURITY CONTROLS DSC WT4911B 2 WAY WIRELESS OUTDOOR SIREN WITH BLUE STROBE by dsc
- **How much does it cost?** £66.61 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/11127263-digital-security-controls-dsc-wt4911b-2-way-wireless-outdoor-siren)

## Best For

- dsc enthusiasts

## Why This Product

- Trusted dsc brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Blue Strobe Light:** Visual deterrent that enhances nighttime security presence
- • **Piercing 105 dB Siren:** Instantly commands attention with high-decibel sound
- • **2-Way Wireless Communication:** Seamlessly integrates with your security system without wires
- • **Easy Wall Mount Installation:** Quick setup to secure your perimeter without hassle
- • **Weather-Resistant Outdoor Design:** Built to withstand the elements and protect your property

## Overview

The DSC WT4911B is a robust 2-way wireless outdoor siren featuring a powerful 105 dB alarm and a striking blue strobe light. Designed for easy wall mounting and reliable weather resistance, it enhances your home or business security by providing both audible and visual alerts that integrate seamlessly with your wireless security system.

## Description

DSC WT4911B 2 way wireless outdoor siren with Blue strobe.

Review: Don’t get ripped off! - Don’t get ripped off! I just received this specific unit and tried to depassivate the battery. Complete junk. Battery is 14 years old. Don’t buy you will regret it. I would give zero stars if I could.
Review: Five Stars - Great siren!

## Features

- DSC WT4911B

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B002I0W3QE |
| Best Sellers Rank | #128,953 in Electronics ( See Top 100 in Electronics ) #447 in Security Horns & Sirens |
| Control Method | Touch |
| Customer Reviews | 2.3 2.3 out of 5 stars (13) |
| Date First Available | June 15, 2010 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.01 ounces |
| Item model number | WT4911B |
| Manufacturer | DSC |
| Mounting Type | Wall Mount |
| Noise Level | 105 Decibels |
| Product Dimensions | 11 x 9 x 2 inches |
| Voltage | 12 Volts (DC) |

## Product Details

- **Battery Description:** Lithium-Ion
- **Brand:** DSC
- **Color:** Blue
- **Compatible Devices:** Alexor Wireless Panel
- **Power Source:** Battery Powered

## Images

![DIGITAL SECURITY CONTROLS DSC WT4911B 2 WAY WIRELESS OUTDOOR SIREN WITH BLUE STROBE - Image 1](https://m.media-amazon.com/images/I/61Wl3pKmDAL.jpg)

## Customer Reviews

### ⭐ Don’t get ripped off!
*by A***O on December 30, 2025*

Don’t get ripped off! I just received this specific unit and tried to depassivate the battery. Complete junk. Battery is 14 years old. Don’t buy you will regret it. I would give zero stars if I could.

### ⭐⭐⭐⭐⭐ Five Stars
*by C***S on November 1, 2017*

Great siren!

### ⭐ Buyer beware
*by M***S on April 12, 2025*

This item cannot be returned once purchased. Buyer beware. This unit cannot be used by any paid for security system like ADT. The unit needs to be paired to any system and ADT will not allow this. None of this is disclosed by the seller, yet they do not allow returns.

## Frequently Bought Together

- DIGITAL SECURITY CONTROLS DSC WT4911B 2 WAY WIRELESS OUTDOOR SIREN WITH BLUE STROBE
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- DSC WS4939 Wireless Key Fob

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**Shop now:** [https://www.desertcart.co.uk/products/11127263-digital-security-controls-dsc-wt4911b-2-way-wireless-outdoor-siren](https://www.desertcart.co.uk/products/11127263-digital-security-controls-dsc-wt4911b-2-way-wireless-outdoor-siren)

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-05-26*