Zenitel’s Slim Door Intercom (ZSD-1) delivers premium audio, video clarity and seamless integration, ensuring secure, positive first impressions
At Zenitel, we believe that sound is one of the most powerful forces on earth. Audio influences how we connect, how we respond to incidents, and how secure we feel in different environments. The quality of sound directly impacts how well conversations are received and understood, and in turn, how effectively we can act. That’s why our constant focus has always been on delivering premium audio experiences—to ensure that people can hear, be heard, and be understood—every time and in every situation.
The Importance of First Impressions
Consider the entry doors of a building. This is often the very first touchpoint for visitors, customers, or staff. That first interaction sets the tone for the overall experience. If communication at the door is unclear, muffled, or unreliable, it immediately creates frustration and weakens trust. On the other hand, clear, seamless conversations at the door deliver confidence, security, and a positive impression.
This is why door entry communication solutions, such as intercoms, play such a vital role. They ensure there is clarity in every single conversation, no matter the circumstances.
Introducing the Zenitel Slim Door Intercom (ZSD-1)
The latest addition to Zenitel’s portfolio of unified critical communication solutions is the Zenitel Slim Door (ZSD-1). Compact yet powerful, the ZSD-1 is an outdoor-ready intercom designed to deliver premium sound in a sleek, modern form factor. Its slim design allows for easy installation even in tight spaces, including narrow door frames, without compromising functionality.
The intuitive design of the ZSD-1 offers both visual and aural feedback, making it user-friendly and accessible for everyone, whether they are visitors, employees, or contractors.
120 Years of Expertise, Built Into One Device
With more than 120 years of experience in sound design and communication, Zenitel understands that premium audio is not just about using good components. It requires a holistic approach where hardware, software, and acoustic design are carefully tuned and optimised to work seamlessly together.
The ZSD-1 reflects this philosophy. Every detail of its construction—from microphone selection to speaker placement to advanced digital signal processing—has been engineered to ensure that voices are transmitted with crystal-clear precision.
Key Features That Set ZSD-1 Apart
The Zenitel Slim Door Intercom is built to deliver reliable performance in any environment. Its features include:
- HD Voice Quality for natural and lifelike conversations.
- Open Duplex Communication that allows both parties to speak and listen simultaneously, just like in a face-to-face conversation.
- Advanced Noise and Acoustic Echo Cancellation, ensuring clear audio even in noisy outdoor environments.
- HD Video with Wide-Angle Lens, providing excellent visibility and identification.
- Exceptional Low-Light Performance, ensuring reliable use day or night.
- Durable Materials, engineered for outdoor conditions and long-term performance.
Smarter Security with Seamless Integration
Beyond audio and video clarity, security is at the heart of the ZSD-1. With ONVIF compatibility, it integrates seamlessly with video management and access control systems. This ensures reliable identification, secure entry control, and streamlined management within broader security ecosystems.
With Zenitel, clarity is always guaranteed—because every conversation matters.







