SIZHENG COTT QD50 CCTV microphone audio monitoring high sensitivity 35dB sound pickups smart dome security camera in CCTV Microphone from Security Protection

SIZHENG COTT QD50 CCTV microphone audio monitoring high sensitivity 35dB sound pickups smart dome security camera in CCTV Microphone from Security Protection
SIZHENG COTT QD50 CCTV microphone audio monitoring high sensitivity 35dB sound pickups smart dome security camera in CCTV Microphone from Security Protection
SIZHENG COTT QD50 CCTV microphone audio monitoring high sensitivity 35dB sound pickups smart dome security camera in CCTV Microphone from Security Protection
SIZHENG COTT QD50 CCTV microphone audio monitoring high sensitivity 35dB sound pickups smart dome security camera in CCTV Microphone from Security Protection

Product Specification

Model Number: COTT-QD50

Brand Name: SIZHENG

Use: For CCTV camera

Monitor Range: 5-100 Square meters (adjustable)

Frequency : 20Hz~20KHz

Sensitivity: -35dB

Output Impedance: 600 ~1000Ω non-equilibrium

Supply Voltage: DC10V-18V (recommend to use 12V, more than 500 meters recommended 15V)

Working Current: 50mA

Working Environment: -25℃~70℃

Product Size: 80mm*47mm

Product Weight: 65g

Description:

50

SIZHENG COTT-QD50 CCTV microphone audio monitoring high sensitivity -35dB sound pickups smart dome security camera

 Key Features of SIZHENG QD50 cctv audio microphone 

1.Using UniGuard RFI shielding technology, prevent radio frequency interference, control noise of surrounding environment.

2.Adopt cross spiral type sound hole, its internal resonance spoke after precise calculation, the sound is more clearly.

3.Using honeycomb type to eliminate reflex phase distortion, control the echo, provide clear and high quality audio signal output.

4.Built-in AGC and DTS noise reduction signal processing circuit, automatically adjust high strength sound and instantaneous impact sound.

5.Unique design of the "electronic noise dynamic closed loop  suppression circuit", completely eliminate "hiss" electronic noise.

6.Built-in lightning protection, power supply polarity reverse connect protection, ESD protection and power protection module.

7.Integrated professional front audio amplifier circuit, direct drive active speakers, DVR, earphones, etc.

8.Applicable to public security organs interrogation room, prisons, finance, education and other places of synchronous video audio monitoring recording.

 Specifications of SIZHENG QD50 cctv audio microphone 

Items Performance Metrics
Audio Monitor Range 5-100 square meters (adjustable)
Audio Transmission Distance  3000m
Frequency Response 20Hz~20KHz
Sensitivity -35dB
SNR 85dB(1m40dB)50dB(10m40dB)1KHz
Directional Property Omnidirectional
Dynamic Range 104dB (1KHz at Max dB SPL)
Max Sound Pressure 120dB SPL(1KHz,THD 1%)
Output Impedance 600 ~ 1000Ω non-equilibrium
Signal Amplitude 2.5Vpp/-25db
Microphone  High fidelity silver plated vibration membrane capacitor microphone
Microphone Quantity 1pcs
Signal Processing Circuit DSP,AGC,ALC
Protective Circuit Lightning protection, power supply polarity reverse connect protection,
ESD protection
Connection Way 3 leading wires
(red lead is power+, white lead is audio signal+, black is power-&audio signal-)
Transmission Cable RVVP3*0.5mm2 shield cable
Supply Voltage DC10V~18V 
(recommend to use 12V, more than 500 meters recommended 15V)
Working Current 50mA
Housing Material Advanced resin PVC+Spray Germany FLAYER diffusion coating
Color White
Weight 65g
Product Size 80mm*47mm
Approvals CE,ROHS,FCC, ISO9001
Place of Origin Guangzhou, China

 

 Product Photos                                          

 

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Instruction:

 

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4.Shipping:

1.We will send the goods within 7 working days after your payment is verify by Aliexpress.

2.Our free shipping only included China post air mail, and the weight should be within 2KG. Please notice the China post air mail are slowly. If the weight over 2KG, you should responsible for the shipping cost.

3.If you want to send by EMS, DHL and UPS, you should pay for the shipping cost.

4.You will trace the goods online after sending the goods 3-7 working days.

5.Please check your goods on the shipping company when you receive the goods.

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