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4 zone, sequential or manual switching, audio/video surveillance system, 12 VDC AC adapter

ETS SM9va is a octa-zone sequential or manual switching, audio/video surveillance system. It can be used independently for monitoring live audio/ video or with tape recorders for recording and playback. Two modes of operation: Audio follow video mode or audio mixer/ switcher operates independently of video switcher. 
Components of the Kit
ETS SM9va is an audio surveillance kit that includes 8 SM1 pre-amplified microphones, SM8va Switcher/mixer/amplifier,12 VDC AC adapter, 3’ Dual RCA Patch cable and a warning label.  The optional accessories are SM1S surface mount adapter for SM1 and White (standard) or ivory face plate.
The Mic of ETS SM9va is an Omni-directional element with 25’ range. It has a low MOSFET pre-amplifier. It enhances clarity of time lapse recordings. It has a switchable treble boost and limiter circuit with easy cable run termination. The configuration of the speaker is 3” and .5W with 70V line speaker input. The SM4va Switcher does Sequential video switcher dwell for 2-90sec. It switches for each video channel to start sequence/hold or bypass cameras. It also has In/out switch and level control for each microphone channel. All settings stored in non-volatile memory.  
Installing the ETS SM9va
The ETS SM9va can be flush or surface mounted. It has Standard RCA and BNC jacks for connection to tape recorders. One can use the 3.5mm headphone jack for the purpose.




SM9va 8 Zone Audio/Video Surveillance System Features:


  • 8 SM1 Pre-amplified microphones.
  • SM8va Switcher / mixer / amplifier.
  • 12 VDC AC adapter
  • Mounting screws (SM1)
  • 3' Dual RCA Patch cable.
  • Warning label.

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