Carbon Monoxide CO gas detector

OC-903 Industrial H2S CO O2 LEL Multi‑gas Detector with High Precision Sensors

Portable 4‑in‑1 gas detector simultaneously measures H2S, CO, LEL and O2. High precision sensors, audible‑visual‑vibration alarm and data logging. Widely used for confined space, mine, sewer, chemical plant to guard against toxic gas, combustible gas and oxygen hazard.

  1. 4‑in‑1 Multi‑gas Detector, Guard Against Poisoning, Explosion and Oxygen Risk.
  2. Monitor H2S CO LEL O2 Simultaneously, Secure Confined Space Operation.
  3. All‑round Gas Safety Alarm for Mine, Sewer and Industrial Worksites.
Get A Quote
Contact Us

Product Description

This portable 4‑in‑1 multi‑gas detector can test H2S hydrogen sulfide, CO carbon monoxide, LEL combustible gas and O2 oxygen at the same time. Equipped with reliable industrial sensors, it achieves fast response and stable readings for multiple hazards on site.
The backlit LCD screen shows real‑time concentration of all four gases. Once readings exceed preset thresholds, audible, visual and vibration alarm will trigger immediately. Built‑in data logger stores detection records for later review and export. Lightweight handheld design suits routine patrol, manhole entry, tunnel maintenance and confined space operation.
It is widely applied in mining, wastewater plant, chemical workshop, sewer repair and industrial plant, protecting workers from poisoning, explosion, oxygen deficiency and oxygen enrichment risks.

Core Features

  1. Professional high-sensitivity electrochemical sensor for H2S hydrogen sulfide, CO carbon monoxide, LEL combustible gas and O2 oxygen, anti-corrosion probe design
  2. 2.4-inch industrial IPS color screen, clear digital display under strong light factory environment
  3. Multi-unit switching support: ppm, mg/m³, %LEL, %vol, matching global industrial testing standards
  4. Internal sampling pump with 100~1000mL/min adjustable suction flow for long-distance pipeline sampling
  5. Built-in temperature & pressure compensation to maintain stable F₂ detection precision in severe environments
  6. Two-stage adjustable alarm threshold + sound-light-vibration triple alarm, clear warning in noisy workshops
  7. Massive 100,000 groups data storage, support PC data export and automatic report sorting
  8. Full international certification: CE, RoHS, CNEx, ATEX, meet global hazardous area safety standards
  9. Compact 180mm size, only 500g weight, easy to carry for field mobile inspection
  10. English language operation menu, simple one-button operation for on-site workers

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 equipment since its establishment. With exquisite technology and outstanding quality, we have won widespread recognition in the global marketing.

 

1

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 Specification:

Gas type H2S hydrogen sulfide, CO carbon monoxide, LEL combustible gas and O2 oxygen
Working principle Electrochemical sensor for H2S,CO,O2

Catalytic combustion sensor for LEL

Measuring range H2S:0~100ppm,CO:0~500ppm,LEL:0~5%vol,O2:0-5%vol or customized
Resolution 0.1ppm, 1 %vol or customized
Precision ≤±3%F.S
Sampling method Pump-suction sampling, flow rate of 100~1000mL/min. (Adjustable)
Data logger function About 100,000 group of data capacity.
Response time ≤20s/10s
Recovery time ≤20s
Repeatability ≤±1%
Linearity ≤±1%
Zero drift ≤±1%(F.S/year)
Display Gas type, concentration unit, value, Time, Temperature, Humidity, pump and battery status
Concentration unit %vol, %LEL, ppm, mg/m3
Working environment Working temperature: -30~60 degree;

Working humidity: 0~95%RH (non-condensing);

Working pressure: -30Kpa~100Kpa.

Explosion-proof Grade Ex ia IIC T4 Ga
Protection grade IP65
Alarm mode Audible-visual-vibration alarm
Dimension 180m’m
Weight 500g
Accessory Box, Instruction, USB charger, Data line, Calibration cap, CD

Remark: If you need gas or measuring range not listed on the above, pls send us your details requirement for further discussion.

Application Scenarios

  1. Mine and underground worksite safety patrol
  2. Manhole, sewer and pipeline maintenance operation
  3. Confined space entry for tank, cellar and vessel
  4. Chemical plant and wastewater treatment plant inspection
  5. Tunnel construction and underground engineering work
  6. Oil & gas, petrochemical site routine detection
  7. Fire rescue and emergency response site monitoring

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

FAQs

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec ullamcorper mattis, pulvinar dapibus leo.

Custom tab

可以自由添加不限数量的Tabs内容,支持按照产品分类、标签应用设置的内容,也可以在单个产品页面独立添加所需的tab,支持排序。

Scroll to Top