Model #STS-K002 – Window Intercom System The STS-K002 Window Intercom System provides clear, natural communication in environments where normal speech is impaired by security glass, partitions, or safety screens. This system ensures reliable, full-duplex communication between staff and customers, improving efficiency and accessibility in secure or high-traffic environments such as banks, pharmacies, government offices, and ticket counters. Features: Full open-duplex speech – allows natural, two-way conversation without press-to-talk buttons Ideal for use where a physical barrier or glazing separates staff and customers Compact and durable design for surface-mounted installation Includes integrated hearing loop aerial for accessibility compliance Simple installation with plug-and-play connections Energy-efficient, high-performance power supply and amplifier System Components STS-A31H Window Intercom Amplifier – Provides full open-duplex communication and system control STS-SU1-3W Staff Unit – Combined speaker and directional microphone with dual mute functionality STS-S60 Surface-Mounted Speaker – Compact customer-side loudspeaker designed for quick surface installation STS-M54 Surface-Mounted Microphone – Omni-directional microphone offering clear voice pickup through barriers IL-AE99 Under-Counter Hearing Loop Aerial – Supports hearing aid users via induction loop technology PS-55 Power Supply – Level VI energy-efficient power source for system operation Downloads Product Data Sheet Installation Manual