ELK 930 Doorbell and Telephone Ring Detector

Turn doorbell presses and incoming phone rings into actionable events for your security and automation workflows with the ELK Products ELK-930 doorbell & telephone ring detector. Designed for integrators and facility managers, the ELK-930 detects one or two doorbell buttons and a single telephone line, then isolates voltage and current to produce an open-collector (pull-to-ground) output that safely triggers controllers, relays, timers or access control systems. Its compact footprint (2.8 x 3.4 x 0.6 inches) and included double-sided foam tape make installation fast in both commercial and residential environments. The pre-scored circuit board lets you snap off individual detectors for flexible placement, simplifying projects that require distributed monitoring points. Because it provides electrical isolation and a clean trigger signal, the ELK-930 reduces risk to connected security and surveillance equipment while enabling reliable event monitoring and automation. Ideal for integration into alarm panels, building automation, and surveillance workflows—add the ELK-930 to your next security or access-control installation and streamline ring-based monitoring and automation. Order today to enhance system responsiveness and protection.

• Converts doorbell and telephone rings into reliable trigger events for automation and security systems
• Isolates voltage and current with an open-collector output to protect controllers, relays and timers
• Detects one or two doorbell buttons plus a single telephone line for flexible monitoring
• Compact, low-profile module (2.8 x 3.4 x 0.6 inches) with included double-sided foam tape for easy mounting
• Pre-scored design allows installers to separate individual detectors for customized deployments
• RoHS-compliant, indoor-rated unit with lifetime limited warranty for long-term commercial or residential use