B.TRADIO wall hanging Audio Surveillance Microphone

Switch Style Microphone, Omni Directional, Monitor Range 10-40sq.m, Suit for indoor any switch could install .

Switch Style Microphone,

Part of customers : Proceracy of Beijing ; Industrial and Commercial Bureau of Guang Zhou;Meeting Room of traffic office etc

Parameter:

Monitoring Range                              10~40sq.mtransmiting distance(shield cable)       3kmFrequency Response                         20Hz ~ 20kHzSensitivity                                         -40dBSNR                                                 65dB(1m/40dB)  

                                                       30dB(10m/40dB)1KHz at 1 PaPolar Pattern                                    Omni-directional   Dynamic Range                                104dB(1KHz at Max dB SPL)Maximum Level Input                        120dB SPL (1KHz,THD 1%)Impedance                                       600ohm (imbalance)Signal Output Extent                         2.5Vpp/-25dbMicrophone                                      Electret condenserSpecial Circuit                                  DSP de-noise, AGC circuit

Protect Circuit                                  Over-loading protection, Lightning proofAudio Preamp                                  Build-inOutput Connector                             Power+, Audio and GND    

Cable                                              3 x 0.5mm2 RVVP cableVoltage                                           DC 12V (8 ~ 20V)        Current                                            20 mATemperature                                    -25°C ~ 70°CColor                                               WhiteShell's Material                                PVCSize                                                85mm × 85mmWeight                                            60gStandard                                         CE  FCC

Detail Introduction:

*Low noise, Low echo, clear speech, medium price.*According to 86 switch international standard, can be mounted to wall.

*Dynamic de-noise disposal, built in DSP processor.*Special closed circle circuit design, eliminating electronic noise.*With diffusion coat, depressing voice reflection on the wall.

*Volumn adjusting automatically (AGC), monitoring range reach 40 sq.m.*Advanced echo canceling technology, successfully eliminating echo interfere.

*Restraining high intensity voice automatically, protecting back-end devices.*Long-distance transmission, the maximum transmiting distance can reach 3km. shield   

*Cable is required: 3 x 0.5mm2 RVVP cable, 4 core phone line, network twist line, etc.*Built-in over-loading protection and lightning proof circuit.*Pre-amplifier, directly drive DVR, VCR, headphone, loudspeaker etc.*Excellent voice experience, widely working temperature: -25~75°C*Widely used in: Police, Jail, Classroom, Army's department.*According with CE standard.

 

B.TRADIO wall hanging Audio Surveillance Microphone