Aiphone KB-3SD Audio Only Sub Handset

Deliver dependable, focused audio communication where full video isn’t required. The Aiphone KB-3SD audio-only sub handset is designed to extend two-way intercom and door-entry monitoring in commercial and institutional security environments. As an audio sub-station compatible with KB-3MRD systems, the KB-3SD installs quickly and can replace up to two KB-3HRD sub-master stations, giving integrators flexibility when scaling multi-station setups. Powered by 24V DC and featuring wired connectivity, it provides stable, interference-free voice communication ideal for access control, reception desks, guard stations, and remote monitoring tasks.

Operational benefits include a backlit CALL locator LED for fast identification, adjustable chime and receiver volume for noisy environments, and internal all-call capability to alert multiple stations. Built to meet procurement requirements, the unit is TAA and NDAA compliant, making it suitable for government and enterprise deployments. Specify the KB-3SD when you need a compact, no-frills handset that strengthens your security and monitoring infrastructure. Contact your Aiphone dealer or systems integrator to add the KB-3SD to your intercom and access control solution.

• Seamless integration with KB-3MRD intercom systems for reliable on-site audio monitoring
• Cost-effective audio-only sub handset that extends two-way communication and door-entry control
• Simple, intuitive controls: chime and receiver volume adjustment plus backlit CALL locator LED for quick response
• Supports up to two KB-3SD units per system, allowing flexible desk, surface, or wall mounting to fit site layouts
• TAA/NDAA compliant and wired connectivity ensure secure, government-eligible installations