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  • Intrasonic IST 304 Villa Video Door Intercom — Specifications

    September 08, 2026 2 min read

    Product overview and specifications for the Intrasonic Technology IST 304 Villa Video Door Intercom.

    Full text manual (for reference)

    Product overview and specifications for the Intrasonic Technology IST 304 Villa Video Door Intercom system — a customizable, complete video door intercom with recording, multi-monitor, and multi-camera support.

    Overview

    The IST 304 is a complete, state-of-the-art video intercom system that can be customized to your home and requirements. It can record who's at the door: if the doorbell goes unanswered, the camera takes a snapshot automatically for later review; if you answer and speak with a visitor, you can capture a snapshot mid-conversation.

    Prescreen visitors from any monitor in the home with hands-free communication to the door. The system supports up to 4 interior monitors — put one in the kitchen, bedroom, family room, or anywhere else you want point-of-entry access without needing to physically be there.

    An optional door release function lets you unlock the door from an interior video monitor, keeping doors locked while providing easy access for welcome guests.

    Multi-Camera / Multi-Point Access

    The IST 304 can network up to 4 exterior cameras across a span of 400 feet, giving guests hands-free communication to any indoor monitor. The stainless-steel-look camera exteriors are sleek and unobtrusive, and include vandalism and rain guards. Door cameras feature LEDs for night vision and selectable door chimes.

    Monitors

    Monitors feature a 7" LCD screen with adjustable brightness and contrast, in a low-profile white casing standing only 7/8" from the wall. Monitors are available with or without a recording feature — mix and match up to four V18-R recording monitors with V18 (non-recording) monitors. For example, put a recording monitor at the main access point and another in a bedroom, while other monitors serve as stations at secondary access points.

    Wiring Diagram

    IST 304 wiring diagram showing daisy-chained cameras and monitors
    Cameras and monitors are daisy-chained in series and linked together into a single system loop. Maximum use: any combination of 4 cameras and 4 monitors, 100 ft. distance between each device, 400 ft. total.

    Technical Parameters

    Spec Detail
    Camera 1/3" Sony CCD, 420TVL
    Min Illumination 0.01 LUX
    Display 7 inch TFT-LCD
    Video Output 1Vpp / 75Ω
    Cable 4-conductor, 20AWG minimum
    Distance 400 feet, system total
    Power DC 18 Volts ±10%
    System Current < 1A
    Input Voltage 110VAC
    Transformer Plug-in power supply included in kit; remote hardwire supply sold separately
    Rough-In Wire and plugs included for plug-and-play

    Maximum use: any combination of 4 cameras and 4 monitors, 100 ft. distance between each @ 400 ft. total.

    About Intrasonic Technology

    Intrasonic Technology, headquartered in Dallas, TX, manufactures full-featured, easy-to-use music distribution and intercom systems. The product line includes Music Distribution and Intercom Systems, Video Door Intercom Systems, and a wide variety of ceiling, in-wall, or mini-cube audio speakers and associated accessories. Products are delivered exclusively through Intrasonic's dealer network, ensuring each system is customized and properly installed.

    Manufacturer Contact

    Intrasonic Technology • 9525 Forest View Street • Dallas, TX 75243
    Phone: 877.435.0670 • www.intrasonictechnology.com

    Copyright © 2013 Intrasonic Technology. All Rights Reserved. IST and the IST logo are registered trademarks of Intrasonic Technology, Inc.