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ETS SM5 Single Zone Audio Surveillance Kit W/ SM1 Microphone and SM2 Interface Box
The ETS SM5 is a single zone audio surveillance system that is designed to connect directly to an audio recorder, video recorder, CCTV monitor (with a built in speaker), or other remote monitoring equipment.
This audio surveillance kit includes the SM1 microphone as well as the SM2 interface box to allow the microphone to interface with a DVR or other recording equipment.
Features of this kit include a 25' pickup radius from the microphone, adjustable gain, a treble boost circuit, and 12VDC power use. So if you're looking for a quality audio surveillance kit, then the SM5 may be perfect for your needs.