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.

Description:
The OC-850 portable multi gas detector is a customizable air quality monitoring device specially configured for CH2O(Formaldehyde), TVOC, O3(Ozone) detection.
It supports dual sampling modes including diffusion sampling and optional 1L/min pump suction sampling. Fitted with imported high-precision electrochemical & PID industrial sensors, the detector features fast response and stable measuring data.
With Ex ib IIB T3 explosion-proof certification and IP65 dust & water resistance, the device adopts LCD real-time display plus sound-light-vibration triple alarm, together with local data storage and long battery life. Widely applied in indoor renovation acceptance, factory workshop, laboratory, sewage plant, disinfection room and environmental law enforcement air inspection work.
Features:
- Real-time simultaneous measurement of CH2O formaldehyde, TVOC and ozone O3; flexible customization for 1~5 gas types
- Dual sampling design: free selection between diffusion sampling and 1L/min pump suction sampling
- Original imported industrial high-precision sensors, response time controlled within 10 seconds
- Sound, light and vibration triple alarm reminder, effective alarm reminder even in noisy working space
- Intuitive LCD screen displays gas concentration, gas name and current alarm working status synchronously
- Built-in data storage module, can save up to 9999 groups of alarm records for later data review and traceability
- Ex ib IIB T3 explosion-proof structure + IP65 waterproof and dustproof casing, adapt to complicated working conditions
- Super long battery life: 100 hours continuous working time under pump closed status
- Switchable Chinese & English system menu; support multiple units: PPM, %VOL, %LEL, mg/m³
- Wide operating temperature range of -40℃ ~70℃, stable detection performance in high and low temperature environments
- Internal stainless steel filter screen protects sensors, keeps smooth air intake and ensures long-term test accuracy

Technical Specification:
| Gas Detected | CH2O, Formaldehyde, TVOC, Ozone O3 | ||
| Detection principle | Electrochemical sensor(CH2O,O3), PID sensor(TVOC) | ||
| Sampling Method | Diffusion type or Pump suction(1L/min) | ||
| Measure Range | CH2O: 0~10ppm, TVOC: 0~10ppm, O3: 0~1ppm; Support customized | ||
| Resolution | CH2O: 0.01 ppm, TVOC: 0.01 ppm, O3: 0.01 ppm | ||
| Precision | ≤± 3% F.S. | ||
| Data store | 9999 groups alarm information | ||
| Response Time | ≤10S | Recovery Time | ≤10S |
| Repeatability | ≤±1% | Linearity error | ≤±1% |
| Zero shift | ≤±1%(F.S/Y) | Display | LCD screen |
| Operating language | English or Chinese | Gas unit | PPM, %VOL, %LEL |
| Temperature | -40~70℃ | Humidity | 0-95%RH |
| Explosion-Proof | ExiaⅡCT4 | Protection level | IP66 |
| Alarm mode | Sound, light and vibration | Operating time | 100hours(off pump) |
| Dimensions | 205*75*32mm | Weight | 300g |
Applications:
- Indoor decoration & new house formaldehyde acceptance testing
- Office, shopping mall, classroom public space air quality monitoring
- Ozone disinfection workshop, water treatment disinfection area safety detection
- Factory workshop VOCs waste gas monitoring and environmental governance inspection
- Laboratory, clean room air hazard monitoring
- Environmental protection law enforcement portable air sampling inspection
- Hotel, real estate indoor air safety testing
Remark: If you need gas or measuring range not listed on the above, pls send us your details requirments for further discussion.
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
Our address:
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




