Y.TRADIO vehicle-mounted audio surveillance systems

Vehicle-mounted 30m long distance Microphone
Parameter:
Audio monitoring distance               audio surveillance distance 0-20m(60Db),30m(80dB)
transmiting distance(shield cable)   3km
Frequency Response                     20Hz ~ 20kHz
Sensitivity                                     -38dB
SNR                                           >40Db(  outdoor),>70Db(indoor)
Polar Pattern                               45° Wide directivity
Dynamic Range                            90dB(1KHz at Max dB SPL)
Maximum Level Input                     120dB SPL (1KHz,THD 1%)
Impedance                                    600ohm (imbalance)
Signal Output Extent                     2.5Vpp/-25db
Microphone                                  45° Wide directivity(dikaryon mic)
Special Circuit                              DSP de-noise, AGC circuit
Protect Circuit                              Over-loading protection, Lightning proof
Audio Preamp                              Build-in

Output connector                          Power+, Audio and Public GND    

Cable                                           3 x 0.5mm² RVVP cable
Voltage                                        DC 12V (8 ~ 20V)       
Current                                        33 mA
Temperature                                 -25°C ~ 70°C
Color                                            Black Case,silver catopter
Shell's Material                            alloy
Size                                            200mm × 140mm× 155mm
Weight                                        1395g