ASK-4® #431


Audio Monitoring Kits
All Products
For Integrators

The ASK-4® #431 is a two zones audio monitoring system designed ideally for connection to IP cameras or DVRs. When ceiling mounted, the two Verifact® A microphones can pick up sounds within a 30′ diameter circle. The model IF-1 interface adapter connects to the microphone, supplies power to the microphone and drives audio into the input of the recording device. The RN-2 allows for extended zone coverage.


  • Line level audio output (RCA jack)
  • Adjustable gain potentiometer
  • Low-profile for ease of installation

Verifact® A:

  • Omni-directional, within 30′ diameter circle
  • High impact anti static ABS microphone housing
  • Can be placed up to 1000′ away from the base station


  • Two channel mixer with adjustable pan potentiometer

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Product Details

Box Contents
(2) Verifact A, IF-1, RN-2, AD-1, Single RCA Cable, 3.5mm Stereo Cable, RCA to 3.5mm Plug (All cable lenghts 6ft.)
Installation Requirements
  • DVR
  • Encoders
  • IP Cameras
Other Info
Microphone Output
Line Level (0 dB 600Ω@ 1 kHZ)
Microphone Dimensions
4"Dia x 1 1⁄2"H
Microphone Weight
3.5 oz
Adapter Dimensions
6 1/8”L x 4 5/8”W x 1 1/4”H
Adapter Weight
5.5 oz
Mixer Dimensions
6 1/8“L x 4 5/8 “W x 1 1/4”H
Mixer Weight
5.5 oz

Product Comparison

Audio Monitoring Kits: 400 Series
3.5 mm headphone jack for private listening
Adjustable gain potentiometer
Base station with 3” speaker for monitoring live audio and playback from a DVR
Durable, high impact ABS housing
High impact anti static ABS microphone housing
Line level audio output (RCA) to DVR
Low-profile for ease of installation
May be deployed up to 1000’ from the Louroe base station
Omni-directional within 30’ diameter circle
Two channel mixer with adjustable pan potentiometer
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