Core strengths
The emergence of Class 1 Noise meter aims to provide users with a comprehensive and high-performance noise meter solution. This product boasts the following significant advantages:
240×320 color screen;
Measurement range up to 142dB;
Company profile
We Henan Oceanus is located in Henan, a land with a long history and profound cultural heritage, has been dedicated to the research, development, production, and sales of Gas detection system and Environment equipments since its establishment. With exquisite technology and outstanding quality, we have won widespread recognition in the global marketing.

01. Business areas
As a leader in the field of Gas detector and Air quality monitor system, we Henan Oceanus will be continued to expand its business scope and provide customers around the world with customizable Air quality monitor system of various types and specifications.
02. Values and ideas
Our company upholds the core values of integrity and quality service, focusing more on friendship with our customers. We always adhere to integrity management, customer-centered, and provide a full range of pre-sales, sales, and after-sales services to ensure that customers can be worry-free when using our products.
03. Global Service Network
We have a comprehensive global service network, offering timely, professional pre-sales consultation, after-sales service, and technical support for overseas users. Regardless of where users are located, they can enjoy our attentive and thoughtful service.
04. Customer Service
With excellent products and services, Henan Oceanus Gas detector and Air quality monitor system have been exported to more than 100 countries around the world and have won widespread praise.
Technical Parameter:
| Fulfils Standards | IEC 61672-2013 Class 1 |
| IEC 61260-2014 Class 1 | |
| ANSI S1.11: 2004 | |
| IEC 60651:2001 Type 1 | |
| IEC 60804: 2000 Type 1 | |
| IEC61252:2002 | |
| Microphone+preamplifier | 1/2″ prepolarized condenser microphone+ Preamplifier
(Sensitivity Level: -28dB) |
| Preamplifier | AWA14601 removable preamplifier type 1 |
| Frequency Range | 10 Hz ~ 20 kHz ± 1 dB (not including microphone) |
| Total Measurement Range | Low range: (20~132)dBA, (25-132)dBC, (30-132)dBZ
High range: (30~142)dBA, (35-142)dBC, (40-142)dBZ |
| Self-generated Noise | <12 dB(A), 17 dB(C), 22 dB(Z) |
| Frequency Weighting. | Parallel (simultaneous) A, C, Z, B, D and user1&2-defined weighting |
| Time Weighting | Parallel (simultaneous) F, S, I, Peak |
| Measurement Parameters | Lxyp, Lxyi, Lxeq,1s, Lxeq,T, LAE, E, Cpeak, LAFmax, LAfmin, LAfeqT, LAseqT, LAieqT.
Note: X is A, C, Z and Y is F, S, I |
| A/D Bits: | 24 bits |
| Sampling Frequency | 48 kHz |
| Calibration | Using Sound Calibrator Class 1 : IEC60942:2003 / IEC 60942:2017
model AWA6221A |
| Correction Function | Press field correction in order to comply with standards ANSI S1.4 |
| Delay Time | The meter can delay 0~99s after pressing start measuring button |
| Back Erase Function | Elimination of undesired noise; example barking dogs, cars, doors |
| Display | 240×320 color screen, adjustable brightness, backlight can be closed |
| Display Resolution | 0.1 dB |
| Low battery indication | Symbol indicate low battery |
| Data Storage
(32 Mb FLASH RAM. SD memory card is optional) |
3328 groups of integrating measuring results only.
3328 groups of statistical results only (‘statistical 1’ and ‘statistical 2’ analysis index are same.) 2663 groups of statistical results only (‘statistical 1’ and ‘statistical 2’ analysis index are different.) |
| Mini-printer | |
| Internal Clock | Error less than 1 min/month |
| Output Interface | AC Output (full scale): 1.0V AC RMS; Output Impedance: 1k Ω; Connector: φ3.5 mm stereo plug |
| DC Output: 20mV/dB; Output Impedance: 1k Ω; Connector: DB-9 plug | |
| RS232 Interface: To computer for output some measurement results instantaneous values , also to mini-printer for printing
Transmission speed: 4800, 9600,115200 bps |
|
| USB Interface: available and no need device drive.
Allow USB to be controlled via communication commands |
|
| Power Supply | 4×LR6 alkaline battery or rechargeable batteries |
| 5 V external power supply | |
| Battery Life | Longest time of 30 hours continuously with 4×LR6 alkaline battery |
| Dimensions | 260 (H) x 80 (W) x 30 (D), mm. |
| Weight | 0.35 kg. (include batteries) |
| EMC | Type X |
| Environment: | Working Temperature: -10 ~ 50 °C
Storing Temperature: -20 ~ 70 °C Relative Humidity: 25 ~ 90 % |
| Accessories | AC adaptor, USB cable, RS232 transmission cable, windscreen, hand strap, windscreen fall prevention rubber, carrying case, U-disk, user’s manual |
| Bluetooth Module (Optional) | Can communicate with smart phone and realize wireless control sound level meter |
Our Service Processes
Pre-sales Consultancy
Confirmation of order
Production
Multi-Channel Shipping
After-sale Services
Our After-sales service:
1. OEM service for LOGO, model, Technical Parameters, Operation manual, etc.
2. Free calibration service and provide calibration methods.
3. One year warranty and lifetime warranty
Henan Oceanus Company is located in Henan, a land with a long history and profound cultural heritage, has been dedicated to the research, development, production, and sales of gas detectors since its establishment. With exquisite technology and outstanding quality, we have won widespread recognition in the global market.
If you need more details of the Class 1 Noise meter, welcome to contact us:
No. 2206, Wenhua Chanye Building Block B, No. 77, Shangding Road, Zhengzhou Area, Henan Pilot Free Trade Zone
Email: info@china-oceanus.com
Telephone: +86 0371 60998169
Mobile/Whatsapp: +86 15981942832
Mobile/Whatsapp: +86 13673683950

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