Edwards Signaling Security Alarm

Ensure prompt, code-compliant alerts in industrial and security applications with the Edwards Signaling 439DEX security alarm bell. This rugged signaling bell is built for hazardous indoor locations and delivers a dependable 93 dB audible alert on 24V DC power, making it ideal for fire alarm, security and monitoring systems where immediate notification matters. The 439DEX series combines explosionproof durability and UL listings for Class I, II and III hazardous divisions, helping you meet regulatory requirements while protecting personnel and assets.

Installers appreciate the low-power design, corrosion-resistant finish, and conduit-ready wiring that speed deployment and reduce maintenance. The diode-polarized models enable electrically supervised circuits for enhanced system integrity, while the self-compensating solenoid ensures consistent performance without field adjustments. Use the Edwards 439DEX with fire panels, security monitoring stations, or industrial notification networks to provide robust, auditable alerts across your facility. Contact us to specify the right gong size and ordering configuration, or add the 439DEX to your next security or surveillance installation for dependable, long-term signaling.

• High-impact audible alerts (93 dB) to cut through industrial noise and ensure immediate awareness
• Designed for hazardous locations with UL Class I/II/III listings for reliable, code-compliant signaling
• Low‑power 24V DC operation reduces load on notification circuits and simplifies integration with fire/security panels
• Corrosion‑resistant housing and direct-surface mount for long life in indoor industrial and plant environments
• Diode‑polarized option and conduit-ready wiring speed installation and support electrically supervised monitoring