DSC WT4911R 2-Way Wireless Outdoor Siren, Red Strobe

Protect your property with a bold, visible deterrent designed for monitored perimeter security. The DSC WT4911R 2-way wireless outdoor siren with red strobe combines a 100 dB siren and high-intensity strobe to announce intrusions and draw immediate attention. Built by DSC for seamless integration with ALEXOR wireless panels, this supervised siren transmits RF status, low-battery and tamper conditions to central monitoring or local keypads, helping maintain reliable surveillance and alarm monitoring without guesswork.

Designed for real-world installations, the WT4911R differentiates alarm types with unique tones for burglary and fire and provides arm/disarm squawks for operator feedback. Its tamperproof housing withstands outdoor conditions while offering a large print area for installer or dealer branding. With nominal battery life of 2–3 years, the unit reduces service calls and operational cost for security integrators and facility managers.

Add the DSC WT4911R to your security system for loud, supervised perimeter protection and straightforward integration into monitoring systems — order now or contact your distributor to specify it for your next installation.

• Delivers immediate deterrence with a powerful 100 dB siren and bright red strobe for clear audible and visual alerts
• Two-way supervised wireless communication integrates with ALEXOR panels for reliable RF status, low-battery and tamper monitoring
• Differentiated tones for burglary, fire and arm/disarm squawks help responders and occupants quickly identify events
• Long-life battery design (nominal 2–3 years) lowers maintenance and reduces site visits for installers
• Tamperproof outdoor housing and large logo print area make it ideal for commercial and residential perimeter security installations