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Trade Discount 25%

2 Way Listen-In Microphone 3 Zones 12V DC Ness

BRAND: Ness
SKU: 101-218
$68.60 List price: $91.40
+ −
Ness listen-in microphone features 2 way audio, 3 zones and 12V DC operation. Ideal for alarm audio verification.

Alternatively Known As: Ness M1TWI Listen-In Interface, Two-Way Audio Verification Interface, Alarm Listen-In Module

Technical Specifications
  • Product Type: Two-way listen-in microphone interface
  • Compatibility: Ness M1 control panels
  • Microphone Zones: 3 separate zones
  • Microphone Capacity: Up to 4 microphones per zone, 12 microphones total
  • Operating Voltage: 12 V DC
  • Interface Board Current Draw: 10 mA
  • Microphone Current Draw: 5 mA per microphone
  • Required Microphones: ELK-M1TWM or ELK-M1TWS compatible microphones
  • Dimensions (H x L x W): 28.5mm x 111mm x 76mm
  • Weight: 0.15 kg
Key Features
  • Provides two-way audio for alarm verification and listen-in functions
  • Supports three separately selectable microphone zones
  • Accommodates up to four microphones per zone
  • Interfaces and powers connected listen-in microphones
  • Programming and operation are managed through the M1 control panel
  • Suitable for central-station alarm verification and remote welfare checks
Professional Installation Requirements
  • Installation and connection should be performed by a trained security or alarm technician in accordance with the Ness M1 installation instructions and applicable local requirements. Audio monitoring must comply with applicable privacy and surveillance laws.
Applications
  • Intruder alarm audio verification
  • Central-station listen-in after alarm activation
  • Remote welfare checks for elderly people or children
  • Ness M1 control panel installations requiring multi-zone microphone monitoring
Environmental Benefits
  • Low-voltage 12 V DC operation supports efficient power use
  • Reusable interface module can extend the service life of compatible alarm installations and reduce replacement waste
Warranty Information

Ness manufactured or supplied products are covered by a 3-year warranty from the date of purchase, subject to Ness warranty terms.

Available Now

Available through Ness and authorised Australian security distributors.