B.TRADIO audio surveillance microphone, 40sq.m monitroing range, switch design,covert installation

Switch Style Microphone,Suit for indoor any switch could install .

 

Parameter:

AUDIO Monitoring Range                              10~40sq.mAUDIO CABLE LENGTH               1000mFrequency Response                         20Hz ~ 20kHzSensitivity                                          -40dBSignal-to-noise ratio                          65dB,1KHz at 1 PaPolar Pattern                                    Omnidirectional   Dynamic Range                                104dB(1KHz at Max dB SPL)Maximum Level Input                        120dB SPL (1KHz,THD 1%)Impedance                                       600ohm (imbalance)Signal Output Extent                         2.5Vpp/-25db

Element                                      1 pcs Polarized condenserDigatal Signal Extent             ASICSpecial Circuit                                  DSP de-noise, AGC circuit

Protect Circuit                                  Lightning stroke and power protectionAudio Preamp                                  Build-in audio preamp circuit Output 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                                            65gStandard                                         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 audio surveillance microphone