New from CAD Audio/Astatic Commercial at the 2010 InfoComm show is the Astatic 210 surveillance microphone, a commercial-grade omnidirectional, button-style model with adjustable line-level output and internal audio limiter.
Visually unobtrusive, the 210 mic features an output level that is variable from -50 dBv (3.2mV) to -10.5 dBV (300mV) @ 1μBar to effectively interface with security cameras, digital video recorders and other observation recording devices.
Astatic’s internal audio limiter circuitry tames high sound pressure levels and improves intelligibility by protecting the audio signal from distorting sensitive recording circuitry in cameras and digital recorders.
The integrated 150 Hz, 6 dB/oct high-pass filter attenuates unwanted low frequency energy. 8 to 18 VDC (70mA) is required to power the microphone (not supplied). The connection is made through a removable 3.5 mm terminal block plug connector on the opposite end of the microphone.
The Astatic 210 housing is all metal, designed for commercial applications into ceilings, walls, tables and other surfaces. Rubber isolation bushings and metal nut/washer hardware are also provided.