Noise sensor
Noise sensor
  • Noise sensor

CRY2120 Noise sensor

CRY2120 Noise sensor is small and has integrated signal conditioning, amplification, sampling and computation circuits. It provides industrial universal RS-485 communication interface / 4-20 mA analog output / Modbus and other data transmission modes.

  • Wide dynamic range
  • Small figure
  • High industrial compatibility
Features of CRY2120

Features of CRY2120

  • Small volume, stainless steel case, and excellent corrosion resistance

  • Equipped with precision measurement microphone, internal integrated preamplifier, high precision ADC, and high speed DSP processor

  • Excellent performance with 110 dB dynamic range, able to measure the noises as low as 25 dBA

  • Supporting SPL Lxy measurement, X supports A, C, Z frequency weighting modes, y supports F, and S indicates the time weighting mode

  • Support 1/3 octave analysis

  • The device uses RS485 bus and our customized communication protocol for data communication, and another version that supports Modbus RTU Communication Protocol is optional.

  • The products of this series have been widely used in the detection, monitoring and evaluation of noises generated by machinery and equipment, traffic trunks, industrial enterprises, construction sites, and community living environment, etc.

Technical specification
Technical specifications of CRY2120 noise sensor

Applicable Standards

IEC61672 (Class 1) and GB/T3785 (Class 1)
Standard MicrophoneCRY333

Optional Microphone

CRY311(1/2'' to 1'' adaptor required)
Measurement Range25~130dBA (Due to slight differences in the sensitivity of the supported microphones, this value shall be subject to the actual product specification.)
Dynamic Range≥ 110 dB,with no need for measuring range switching
AD sampling rate48kHz
Detection modeFull digital
Receiver noise19dB(A)、21dB(C)、27dB(Z)
Frequency range10Hz~20kHz
Frequency weightingA、C、Z
Time weightingF、S
Measurement indicatorLxy(x=A/C/Z,y=F/S)
Data refresh cycle50ms
Sound pressure level (SPL) outputRS-485;4~20mA,1~5V or 2~10V(either of the three)
Supply voltageDC 5-24V(For current output and voltage output, please use high supply voltage for power supply.)
Overall Dimensionɸ24.5mm×111mm
Operating conditions-10~+50 ℃;RH: ≤ 90% (without condensation)
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After-sales services
  • 20 years industry experience

  • 24 hours Technical Support

  • Professional engineers on line response

  • 2 hours response
    Solution within 2 work days

  • All life Costs Maintenance

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