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Audio Monitoring

EP-SZ303S

Item No:2603
HD Pinhole Audio Monitoring
INQUIRY
  • Details

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 microphones,5~50㎡ 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.Unique dolby omnidirectional logic surround sound standard design, built-in high-speed voice DSP processing units, two level dynamic noise reduction processing.

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

7.Built-in ALC level control circuit, automatically adjust high, low intensity of voice and instantaneous voltage and current surge.

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

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

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

11.Gain patent certificate of State Intellectual Property Office of The People's Republic of China.

12.Gain computer software copyright of National Copyright Administration of The People's Republic of China.
 

Delivery Term: 15-30days


Parameters:

Items

Audio Pickup    Performance Metrics

Audio Monitor Range

5-50㎡(adjustable

Audio Transmission Distance

3000m

Frequency Response

20Hz~20kHz

Sensitivity

-40dB

SNR

70dB(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     

BOURNS large gilded vibration membrane microphones

Microphone Quantity

1pcs

Signal Processing

DSP,AGC,ALC

Protective Circuit

Lightning    protection, power supply polarity re verse connect protection,ESD protection

Connection Way

3    leading wiresred lead    is power+,white lead is audio signal+, black is power-&audio signal-/AV wiring    systemDC femaleRCA

Transmission Cable

RVVP3×0.5mm2    shield cable

Supply Voltage

DC10V~18V (recommend to use 12V, more than 500 meters recommended 15 v)

Working Current

40mA

Environment Temperature

-25℃~70℃

Color

white

Housing Material

Advanced    resin PVCSpray    diffusion coating

Product Size

63mm×23mm

Weight

25g

Place of Origin

Guangzhou,China

Supply Ability

Spot Goods

Approvals

CE,ROHS,FCC, ISO9001


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