Resideo 748 Indoor/Outdoor Dual-Tone Siren, 119dB, Tamper Proof and Weather Resistant

Designed to deliver unmistakable audible alerts for commercial and residential security systems, the Resideo 748 indoor/outdoor dual-tone siren provides powerful, reliable notification where it matters most. As a Resideo-branded siren, the 748 produces a 119 dB sound level to deter intruders and accelerate emergency response, while its tamper-proof and weather-resistant enclosure ensures continuous operation in harsh outdoor environments. Installers will appreciate simplified mounting—surface or direct to a 4" electrical box—eliminating the need for bulky cabinets and cutting installation time and cost. The unit runs on standard 14V DC with a modest 25W power draw, making it easy to integrate with existing alarm and monitoring panels. UL, CSFM, and MEA listings mean the 748 meets industry standards for security and surveillance applications. Ideal for perimeter protection, commercial properties, gated communities and critical infrastructure, this compact siren delivers durable performance and compliance-ready credentials. Add the Resideo 748 to your security design to enhance audible alerts and monitoring effectiveness—order now or contact sales for system integration support.

• Instant audible deterrence: 119 dB dual-tone alarm cuts response time and deters intruders for improved site security
• Rugged, reliable performance: Tamper-proof, weather-resistant housing protects electronics for outdoor and indoor surveillance use
• Easy, cost-effective installation: Surface or box-mounts directly to a 4" electrical box—no cabinet required, reducing labor and material costs
• System-ready power: Designed for 14V DC systems and low 25W consumption to integrate seamlessly with commercial and residential monitoring panels
• Certified and supported: UL/CSFM/MEA listings and a 2-year limited warranty provide code-compliant, long-term peace of mind