1: MX-K20 advanced digital waterproof and anti-riot pickup, specially designed for indoor and outdoor remote monitoring and recording.
2. Adopt a durable and beautiful metal shell with electroplated surface, away from the interference of environmental noise.
3. Adopt high-fidelity MEMS outdoor waterproof silicon microphone with high fidelity, high sensitivity and low noise within 100 square meter.
4. Good waterproof, moisture-proof and dust-proof performance, which can work normally for 48 hours in rainy days, in line with the IP 56 standard.
5. Adopt the patented technology of "wide dynamic range compression" to realize WDRC wide dynamic range compression.
6. Adopting array arrangement technology, streamlined appearance design and metal sound filtering protection net can effectively reduce empty echo.
7. Unique Dolby omni-directional logic surround sound standard design, built-in high-speed speech DSP processing unit and two-stage dynamic noise reduction processing.
8. Automatically adjust high-intensity sound and instant impact sound to reliably protect the back-end audio monitoring equipment.
9: The pickup has built-in lightning protection, power polarity reverse protection, electrostatic protection and power protection modules.
10: Ultra-long audio signal transmission technology, using RVVP3×0.5mm2 shielded cable to transmit 3km without distortion.
1 1: It is suitable for working at the super ambient temperature of -20℃ ~ 75℃ to ensure high-quality recording effect in the back end.
12: integrated ASIC pre-amplifier circuit, directly driving active speakers, hard disk video recorders, headphones, etc.
13: It is suitable for synchronous monitoring records of indoor and outdoor environments such as courts, procuratorates, patrol booths and outdoor monitoring.
14: EU ROHS directive 2002/95/EC building code was adopted.
15: The EU CE standard and the highest-level construction specification for synchronous audio and video recording system have been passed.
16: The relevant standards of the Federal Communications Commission (FCC) and the corresponding system construction specifications were adopted.
Project index
Pick-up area 100m2 (outdoor)
The audio transmission distance is 3000 meters.
The frequency response is 20hz ~ 20khz.
Sensitivity-35dB
The signal-to-noise ratio is 90dB (1 m 40 dB sound source) and 60dB (10 m 40 dB sound source) 1KHz is in 1 Pa.
Directional characteristic omnidirectional
The dynamic range is 90dB (1KHz at the maximum dB SPL).
Grade input noise is 2.5Vpp/ 10dB sound pressure.
The maximum gain is 50dB.
/kloc-maximum sound pressure at 0/00 db SPL, thd <
The maximum sound output is 2.5Vpp/90dB sound pressure.
The output signal amplitude is 2.5Vpp/-25db.
The output impedance is 600 ~ 1000 ohm unbalanced.
Microphone hi-fi MEMS outdoor waterproof silicon microphone
Signal processing circuit array counterpoint processor, WDRC wide dynamic range compression, DSP two-stage dynamic noise reduction processing.
Protection circuit lightning protection, power polarity reverse connection protection, electrostatic protection
Connection mode: 3 leads (red power positive pole, white audio positive pole, black common ground).
Transmission cable, telephone line, network twisted pair, shielded cable (please use shielded cable in electromagnetic complex environment)
The DC voltage of the power supply is DC 10V ~ 18V (recommended 12V, recommended over 500m 15V).
The working current is 30 mA.
Reliability index MTNF≥80000 hours
Ambient temperature -20℃ ~ 75℃
The color is white.
Shell material metal+stainless steel double-layer metal mesh cover
Overall dimensions 1 10 mm× 77 mm
The weight is 230 grams.
Imported equipment is assembled in China.
The samples can be tested free of charge if the goods are available.
It conforms to the European Union CerRoHS standard, the United States FCC certification, and the construction specification of the highest-level synchronous recording and video recording system.