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CERRXIAN Microphone Audio Pickup Device for Security Camera,Within 100m Squre Meters Wide Range for CCTV Security Camera DVR Surveillance System Etc

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Product ID: 207125897
Brand:
cerrxian
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About the item

  • The Microphone Audio Pickup Device is a new sensitivity adjustable pickup, television monitoring, security system supporting the use of the most ideal products, and the camera can achieve audio synchronization, monitoring range up to 100 square meters.
  • The Microphone Audio Pickup Device adopts a high-fidelity low-noise processing chip, which can effectively suppress ambient noise and high-frequency interference. The built-in automatic gain control (AGC) noise reduction processing circuit can suppress echo and provide clear audio signal output.
  • The use of high-sensitivity miniature microphone， it is possible to accurately calculate the Angle of reflection of sound to achieve the best sound quality.
  • 3M convenient paste design at the bottom, no need to punch installation.
  • Copper core interface, small loss, fast transmission, strong reliability. It is suitable for various monitoring places such as bank, prison, examination room and industrial production. It has the characteristics of low noise, high fidelity, wide working voltage range, low power consumption and long transmission distance.
Precautions for use 1.This pickup does not support sw power supply, please use a high quality 12V dc stabilized power supply 2.If the audio cable is connected to another audio device, please disconnect and go directly to the【line in】 interface of the desktop sound card and test it with the recorder software that comes with the operating system. If the sound is correct, check the connection to the audio device or elsewhere 3.When wiring, please walk the wire alone, do not use the same cable with ac power point, and try to stay away from the transformer, lamp rectifier lamp strong electromagnetic interference equipment. (using 3*0.5RVVP shielded cable can also effectively avoid external interference, in which the shielding layer is required to be single-ended grounded) 4.Some video monitors come with speakers, but the effect may be poor, please use good headphones and active speakers for monitoring 5.The integrated sound card on some computer motoards is of poor quality. It will cause serious noise when . Please use a quality independent sound card instead 6.Pick-up output impedance is 600 Ω ，backend acquisition card audio input impedance need between 600 Ω (including the critical value) 7.Check that the volume of the sound gain potentiometer or amplifying device is properly adjusted
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