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Name：Audio Surveillance and Microphones；Audio Monitoring Kits; Audio Surveillance Microphone；Audio Surveillance Equipment；High Gain CCTV Security Surveillance Audio Mini Microphone；High Sensitive Preamp Microphone Kit for
Security Surveillance Audio Sound Voice Monitoring Recording
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Model：SM-115
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Processing Chip：Optimization of acoustic monitoring head voice; Silver imported from Japan capacitor microphone
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Product Characteristic：
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Processing chip: adopts the United State advanced circuit, with high sensitivity and ultra-high silencing function.
High sensitivity silencing audiomonitor adopts digital analog processor, high fidelity, sensitivity adjustable adopts the United State advanced circuit, with high sensitivity and ultra-high silencing function.
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Technical Parameter：
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High sensitivity silencing audiomonitor adopts digital analog processor, high fidelity, sensitivity adjustable adopts the United State advanced circuit, with high sensitivity and ultra-high silencing function.
Audio monitoring radius can reach up to 5m
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1 Connection
There is 3 pin of green terminal board, stand for power supply V, grounding G and signal S
Connect the power supply with V terminal board
Connect the unshielded cable with G terminal board
Connect the audio signal cable with S terminal board
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2 Sensitivity Adjustable
There is potentiometer to adjust the sensitivity beside the MIC. Clockwise, reduce the sensitivity, withershins, increase the sensitivity.
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3 Transmission cable
2 cores shielded wire or 3 cores shielded wire
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4. Sensitivity -40±3Db
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5.Operating voltage: 9V—12VDC
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6. Current: 5 MA-60 MA
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7. Output level: 0-6V
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8．Power dissipation ≤2.0W
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9. Frequency range: 300Hz—3KHz
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10. Frequency respond: 2.5dB
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11. Output impedance: 4.7KΩ
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12．Operating temperature: 5℃--40℃
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13. External dimension:
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14.weight:
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