ETS is a quality manufacturer of Sound Surveillance tm audio products for use with DVRs, I/P cameras, CCTV monitors (with built in speakers), one and two way remote monitoring equipment and accessories. ETS manufactures pre-amplified microphones, weather resistant microphones, audio amplifiers, audio switchers, audio mixers; sound activated audio switchers, speakers and DVR interface equipment. See below for details on the ETS SM9va.

Kit Includes

• 8 x SM1 Pre-amplified microphone.
•  SM8va Base Station
• AC Adaptor
• 3’ twin RCA Patch cable.
• 8 x Warning label.
• SM1 mounting screws.
• Installation instructions.

SM1 Microphone Specifications

• Omni-directional Electret element.
• 25’ range in all directions.
• Frequency response: 200-16Khz.
• Low noise MOSFET pre-amplifier.
• Line level, unbalanced output.
• Adjustable gain.
• Treble boost circuit. Selectable on/off. 
• Limiter circuit. Selectable on/off.
• 3 positions Euro-style connector makes cable termination fast and clean.
• Flush mountable. Can be mounted on a single gang electrical box. 
• Power: 12 VDC @ 10mA

SM8va Switcher / Mixer Specifications

• Sequential video switcher dwell: 2-90sec.
• Switch for each video channel to start  sequence/hold or bypass cameras.
• In/out switch and level control for each  microphone channel.
• All settings stored in non-volatile memory.
• Standard RCA and BNC jacks for connection to tape recorders, etc.
• 1 Watt Power amplifier.
• 3” full range speaker.
• Tape monitor switch.
• 3.5mm Headphone jack.
• Power: 12 VDC @ 500mA