The ASK-4®#631 is a single zone audio monitoring system with a wall mounted mute switch. This system is designed to interface with a NVR, video system or other recording devices that accept line level input. The IF-1 Audio interface contains a volume control for the line level output to recording devices. The Verifact® A is microphone is designed for ceiling. The MS-1 is an illuminated mute switch that can use to mute the microphone output. It is commonly used for interrogation rooms.
IF-1:
- Single zone audio interface
- Provides 12 Vdc power to the microphone
- Volume control to prevent overdriving
- RCA and 3.5 mm audio outputs
- Compatible with most recording devices that accept line level audio input
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
MS-1 :
- LED rocker switch on stainless steel, single gang faceplate
Audio Monitoring Notice

When this equipment is used as part of an audio monitoring system, the law requires that the public be given notice of AUDIO MONITORING ON THE PREMISES.
Two decal notices are included with each microphone shipped.
Federal Law References: Federal Regulations, US Code, Title 18, Crime and Criminal Procedure. Sec 2510.
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