SIZHENG COTT QD30 cctv microphone security accessories for video surveillance cameras in CCTV Microphone from Security Protection

SIZHENG COTT QD30 cctv microphone security accessories for video surveillance cameras in CCTV Microphone from Security Protection
SIZHENG COTT QD30 cctv microphone security accessories for video surveillance cameras in CCTV Microphone from Security Protection

Product Specification

Model Number: COTT-QD30

Brand Name: SIZHENG

Use: For Surveillance Camera

Audio Monitor Range: 5-50 square meters(adjustable)

Sensitivity: -40dB

Output Impedance: 600 ~1000Ω non-equilibrium

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

Working Current: 40mA

Working Environment: -25℃~70℃

Product Size: 63mm*23mm

Main Material: Advanced resin PVC+Spray diffusion coating

Warranty: 12 months

Description:

30

SIZHENG COTT-QD30 cctv microphone security accessories for video surveillance cameras 

 Key Features of SIZHENG QD30 cctv audio microphone 

1.Specially designed for prison interrogation system of synchronous recording, pinhole type design, hidden installation.

2.The Advanced resin material "honeycomb" collect sound design, completely eliminate "hiss" electronic noise.

3: BOURNS large gilded vibration membrane microphone,5~50 square meters  in high fidelity, high sensitivity, high bandwidth and low noise.

4.Using 0.8mm pinhole type design, its internal resonance spoke after precise calculation, the sound is more clearly.

5.Built-in AGC noise reduction signal processing circuit, effectively reduce serious echo of empty room.

6.Long audio signal transmission technology,use the RVVP3 x 0.5mm2 shield cable, it is distortionless within 3km.

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

8.Widely used in the interrogation room, courts, public security organs, procuratorate, banks and other any indoor places need to monitor, give full play to the effect of high-fidelity sound pickup.

 

 Specifications of SIZHENG QD30 cctv audio microphone 

Items Performance Metrics
Audio Monitor Range 5-50 square meters (adjustable)
Audio Transmission Distance  3000m
Frequency Response 20Hz~20KHz
Sensitivity -40dB
SNR 70dB(1m40dB)50dB(10m40dB)1KHz at 1Pa
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  BOURNS large gilded vibration membrane 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 40mA
Housing Material Advanced resin PVC+Spray diffusion coating
Color White
Weight 25g
Product Size 63 mm*23mm
Approvals CE,ROHS,FCC, ISO9001
Place of Origin Guangzhou, China

 

 Product Photos                                    

1

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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