Outdoor explosion-proof noise-cancelling pickups NIS-18X

介绍说明
产品参数
产品尺寸

1、Outdoors waterproof large area omnidirectional pickup, is designed for outdoor square patrol car, toll station and other environment pickup.
2、Electret advanced condenser microphone, 5-50 square high-fidelity noise reduction, high sensitivity, low noise.
3、Sandblasted surface "Peak Fire TE special" oxide coating, high weatherproof performance, ceiling centered position or side wall installation.
4, low-noise circuit wiring exquisite, industrial devices stable and reliable, fully capture the complete, clear voice sound.
5, the new version of the improved electronic white noise suppression circuit, no "hiss" electronic noise.
6, using New integrated systems DSP high-fidelity voice processing algorithm for the human voice design, sufficient force, high resolution
7, comes with a mounting bracket design, easy to load and unload, easy to ceiling or side wall installation.
8, ultra-long audio signal transmission technology, using RVVP2 × 1.5mm2 shielded cable transmission 1 km without distortion.

Pickup range:50 square meters
System platform: TI dual-core DSP high-fidelity processor
Pointing characteristics: omnidirectional
Sensitivity:-42±3dB RL=2.2KΩ Vs=1.5V ( 1KHz 0dB=1V/Pa)
Sampling rate:36k/24bit
Audio algorithm: New integrated systems DSP high-fidelity voice processing algorithm
Noise reduction capacity: 15-30dB (white noise)
Frequency response: 20Hz ~ 20kHz (1 kHz@94dB SPL)
Pre-selected features: digital EQ, speech enhancement NIS
Speech recognition rate:95 % (20dB noise environment)
Transmission level:2Vp-p (1 kHz@94dB SPL)
Distortion:≤ 0.8% @0dBv (80dB SPL)
Output impedance:600-1000 ohms unbalanced adaptive
Protection circuit: polarity protection, misconnection protection, lightning protection, ESD protection
Connection: three-wire system: power line (red), audio (white), common ground (black)
Supply voltage: 35mA linear regulated power supply DC 12V
Shell material: aluminum alloy
Operating environment:-35℃ ~ 70℃
Electromagnetic compatibility: in line with GB20815-2006
Reliability index: MTNF≧100000hours
Weight:50g
Dimension:65mm(height)×28mm(diameter)
Availability:In stock. Sample test available.

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