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:
- NH3 adopts independent high-selectivity electrochemical sensor to detect pungent ammonia decomposed by livestock manure, sludge and organic waste;
- Odor malodor uses high-sensitivity MOS metal oxide semiconductor sensor to identify mixed composite stench from fermentation waste gas;
- CO2 adopts stable NDIR infrared sensor with low zero drift and long service life, measuring carbon dioxide accumulation produced by microbial fermentation in closed breeding houses and sewage tanks.
Support dual sampling modes: standard diffusion sampling and optional 1L/min pump suction sampling, suitable for deep septic tanks, underground sewage wells, closed livestock houses and waste transfer stations gas collection. Built-in stainless steel anti-corrosion filter screen isolates corrosive mist, manure dust and water vapor to protect sensors. LCD screen synchronously displays real-time concentration, gas name and over-limit alarm status of three gases.
With Ex ib IIB T3 explosion-proof certification and IP65 dustproof & waterproof grade, triple sound-light-vibration alarm, stores up to 9999 groups alarm records. Wide working temperature -40℃~70℃, 100 hours long standby without pump. Widely used in livestock breeding farms, sewage treatment plants, septic tanks, kitchen waste disposal workshops and environmental law enforcement malodor sampling inspection.
Features:
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- Detects 1–5 gases simultaneously
- Compatible with electrochemical, NDIR, PID, and semiconductor sensors
- Flexible gas configuration for different detection environments
- Pump suction or diffusion sampling mode (optional)
- LCD display showing gas concentration, gas type, and alarm status
- High-precision imported sensors for accurate measurement
- Built-in self calibration and zero calibration functions
- Temperature and pressure compensation for reliable readings
- Two-level alarm system: sound, light, and vibration
- Adjustable alarm set points
- One-key factory reset function
- Large capacity rechargeable lithium polymer battery
- Durable PC + TPE housing: anti-slip, waterproof, dustproof, explosion-proof
Stainless steel filter for better gas flow and sensor protection

Technical Specification:
| Gas Detected | NH3, Odor, CO2, Customized by customers | ||
| Detection principle | NH3: Electrochemical; CO2: NDIR Infrared
Catalytic combustion、Electrochemistry、NDIR、PID, etc Customized by customers |
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| Sampling Method | Diffusion type or Pump suction(1L/min) | ||
| Measure Range | NH3: 0~100ppm, Odor: 0~1000ppm, CO2: 0~10000ppm, As gas type | ||
| Resolution | 1%LEL、0.1%VOL、1PPM、0.1PPM | ||
| 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 |
Remark: If you need gas or measuring range not listed on the above, pls send us your details requirments for further discussion.
Applications:
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- Large livestock breeding farms, monitor irritant NH3, composite malodor and CO2 ventilation concentration inside breeding houses
- Municipal sewage treatment plant, septic tank, sludge tank three-index waste gas safety patrol inspection
- Waste transfer station, kitchen waste disposal workshop fermented manure gas comprehensive monitoring
- Underground sewage well, confined space pre-operation malodor and gas safety detection
- Environmental protection law enforcement farm and sewage plant malodor & carbon dioxide sampling acceptance
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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





