CRY2851 Sound Level Meter
The CRY2851 sound level meter is developed specifically for noise monitoring in various application scenarios. The product series meets the relevant requirements of the IEC61672-1:2013 standards, offering Class 1 accuracy products. in addition, based on different customer needs, a variety of functional options can be provided, including integral measurement, statistical analysis, 1/1 Oct,1/3 Oct, FFT analysis.
The CRY2851 adapts to diverse monitoring scenarios, making it ideal for applications such as environmental noise monitoring, traffic noise assessments, online noise pollution tracking, occupational health evaluations, and airport noise monitoring. Its flexibility and precision help establish accurate and reliable noise monitoring capabilities.
Ultra-Wide Range
Low Noise Floor
Abundant Interfaces
Wide Dynamic Range
The sound level meter can replace different microphones to adapt to various testing requirements. For example, the CRY344 microphone is suitable for testing scenarios with high sound pressure levels, such as aircraft engines and large industrial machinery, with a maximum testing sound pressure level exceeding 170 dB(A). In contrast, for internal noise testing in an anechoic chamber, the CRY311 microphone can be used, reaching a testing lower limit of 15 dB(A) or below. By switching between different microphones, the sound level meter can cover test needs from 15 dBA to 170 dBA.
Exceeding 170 dB(A).
Below 15 dB(A).
Dynamic range of 155 dB.
Abundant Interfaces
The sound level meter is equipped with a comprehensive range of communication interfaces, including Ethernet, WiFi, Bluetooth, Type-C, headphone jack. SLM can transmit noise data to the host computer via Ethernet or WiFi, and connect to peripherals such as printers and headphones using Bluetooth and the headphone jack. Moreover, with the use of appropriate adapters, the device can convert network interfaces to RS-232 for seamless data transmission.
RJ45 and WiFi connection.
Bluetooth connection.
Headphone jack and Type-C connection.
Sound level meter management software
The sound level meter is paired with management software. The software can connect and manage devices via Ethernet or WiFi, and consolidate data. Staff can use the management software to achieve functions such as real-time data monitoring, viewing historical data, exporting reports, downloading data, and more. Within the management software, Lp, Lmax, Lmin, Leq, Lpeak, LN(1-99), SD, EA, LAE(SEL), 1/1 OCT, 1/3 OCT, FFT, and other important acoustic parameters can be viewed.
Simultaneously control multiple devices.
Remote viewing of device data.
Report Generation.
Sound Level Meter Features
The sound level meter built-in calibration, sound level measurements, statistical analysis, 1/1 octave band analysis, 1/3 octave band analysis, spectrum analysis, and a noise monitoring app. It can measure various noise parameters including Lp, Lmax, Lmin, Leq, Lpeak, LN(1-99), SD, EA, LAE(SEL), 1/1 OCT, 1/3 OCT,FFT analysis. Its comprehensive testing capabilities make it suitable for a range of noise measurements in scenarios like basic noise testing, environmental noise assessment, product quality control, and occupational noise evaluations.
Noise data testing.
Noise statistical analysis.
Octave band testing.
Easy To Operate
The sound level meter is equipped with a 4-inch LCD touchscreen display, featuring power, direction, and cancel physical buttons, allowing customers to choose their preferred mode of operation. Additionally, the design of the sound level meter considers ergonomic principles for easy handling. The device’s 1/4-inch threaded interface at the bottom can be paired with a standard tripod mount for extended outdoor monitoring. Furthermore, the sound level meter is designed with a detachable preamplifier interface, enabling users to freely switch between standard monitoring mode and monitoring mode with extended cables.
Combining touch screen and buttons.
Ergonomic design.
Standard tripod mount interface.
Occupational Noise Measurement
The sound level meter can be utilized for occupational noise exposure testing. Staff members can conduct 8-hour sound exposure monitoring in the workplace using the sound level meter to obtain relevant noise monitoring data. This data includes parameters such as the equivalent continuous A-weighted sound level LAeq (Lex) and the equivalent A-weighted sound level -EA- value, which are used to assess the level of sound exposure.
Precise Measurement.
Real-time Data.
Data Recording.
Aircraft Noise Monitoring around Airports
The sound level meter can be used with the NA41 outdoor protective cover for noise monitoring at airports. The noise data collected by the device can be transmitted to a data center via wireless or wired networks. By combining noise data with flight information, it becomes possible to objectively assess the noise impact around the airport, understand the patterns and characteristics of noise emission changes and intensities. This provides technical and data support for noise control at airports, enhancing the automation, standardization, and intelligence of aircraft noise monitoring around airports.
Airport noise standardized monitoring.
Automatic flight event identification.
Noise level exceedance precise identification.
Environmental Noise Monitoring
Sound level meters are used to record noise levels on site, and the data can be monitored remotely and downloaded for statistical analysis and assessment of environmental noise levels using post-processing software. This solution is suitable for both short-term noise assessments and long-term monitoring applications.When conducting noise monitoring outdoors with a powerful sound level meter, equipping it with an outdoor microphone and protective cover makes it suitable for long-term continuous noise monitoring in outdoor environments.
Remote monitoring automation.
Data processing and analysis.
Exceeding standard proactive alarm push.
Technical Specifications
Microphone
Microphone type
CRY333
Open circuit Sensitivity
50mV/Pa(-26dB re 1 V/Pa)±2dB
Frequency range
3.15Hz~20kHz(±2dB)
Self-generated noise level
≤16dBA
Linear Operating Range
21 dBA ~ 143 dBA
Frequency range
10Hz~20kHz
Internal noise
≤18dBA
Applicable standards
GB/T3785.1-2010 Class 1 ；IEC61672-1: 2013 Class 1
Certified
CE，CPA，CCEP
Weighting filters
Frequency weighting: A, C, Z
Time constants
Time Weighting: S, F, I
Measuring Parameter
Lp, Lmax, Lmin, Leq, Lpeak, LN(1-99), SD, EA, LAE(SEL), 1/1 OCT, 1/3 OCT, FFT
Measurement function
SLM, Statistic, 1/1Octave（16~20kHz）, 1/3Octave（10~20kHz）, FFT
Technical Specification
Battery
6600mAh lithium battery
Operation Time
17h(screen,BT,WiFi off）
Charging Time
4h
External Power Supply
USB Type C
USB input voltage
5V DC
Operating temperature range
-20~+60℃
Humidity range
≤90% RH
Calibration
Power Supply
Ambient conditions for operation
Physical
Related Products
CRY2834 Sound level meter
CRY2831 Sound level meter
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At CRYSOUND, we blend precision with passion. With over 25 years of experience in delivering high-quality acoustic measurement products, we are dedicated to providing advanced solutions that empower users to be the champions of audio test and detection solutions.