Description
C-F08 fixed carbon dioxide detector is a wall-mounted industrial gas monitor equipped with high-performance NDIR non-dispersive infrared CO₂ sensor. It continuously detects CO₂ concentration within 0~5000ppm, designed for long-term online monitoring of carbon dioxide in industrial environments.
Adopting die-casting aluminum housing with IP66 ingress protection and explosion-proof structure, the detector can work reliably in harsh dusty and wet industrial sites. It supports multiple signal outputs: 4-20mA analog signal, RS485 Modbus digital communication and relay alarm contact output, which can be seamlessly connected to PLC, DCS and industrial alarm control systems. When CO₂ concentration exceeds preset threshold, the relay will trigger external audible & visual alarm devices to warn operators for safety protection.
This NDIR CO₂ sensor features excellent gas selectivity, no oxygen dependency and stable long-term performance. It can effectively prevent safety hazards caused by high CO₂ accumulation and oxygen deficiency, widely used in greenhouses, fermentation workshops, cold storage, mines, food processing plants, underground tunnels and chemical factories.
Features:
- 4-20mA standard analog signal and RS485 digital signal output, 200~ 1000HZsignal output, relay output (optional);
- Intelligent sensor, modular design, easy maintenance
- Display the gas concentration in ppm, %LEL, %vol and mg/m3 is selectable;
- LCD screen displaying the gas concentration, gas type, unit, instrument status etc.
- Independent air chamber, the sensor is not required to replace the sensor calibration, automatic identification of key parameters of the sensor;
- Infrared remote control operation, avoid cover opening operation in dangerous situations.
- With the 16bit ADC acquisition chip, designed with four-layer circuit board, so with high anti-interference ability;
- With the Ex-proof certificate, the Ex-proof grade is Exd II CT6.
Applications
- Greenhouse & Plant Grow Room
- Beverage & Food Fermentation Workshop
- Cold Storage & Warehouse
- Mine, Underground Pipe Tunnel
- Chemical Plant, Pharmaceutical Factory
- Livestock & Poultry Farm
- Indoor Air Quality Monitoring for Industrial Building

Technical Parameter:
| Detection Gas | Carbon Dioxide CO2 |
| Sensor Type | Infrared sensor |
| Detecting Range | 0~5000ppm, 0~20%vol, 0~100%vol or customized |
| Resolution | 1ppm, 0.1%vol |
| Sampling | Diffusion or pump-suction, circulation selectable |
| Precision | ≤±3%F.S |
| Repeatability | ≤±2% |
| Zero drift | ≤±1%(F.S/year) |
| Sensor Life | 2~3years
(Catalytic combustion, Electrochemical, Semiconductor) 3~5 years(PID, Infrared) |
| Response Time (T90) | ≤30s(combustible gas) |
| Alarming mode | Audible-visual alarm, relay output alarm |
| Working Temperature | -20℃~50℃ (Toxic gas)
-40℃~70℃ (Combustible gas) Or Customized for special demands |
| Working Humidity | 10%~95%RH (non-condensing), if >90%RH, can add the filter |
| Working Pressure | 86kPa~106kPa |
| Working Voltage | 24V DC (Normal operating voltage range: 10~30VDC) |
| Power consumption | <1.5W (Toxic gas) ; <2.5W (Combustible gas) |
| Output Signals | (Standard)Three-wire system 4~20mA standard signals output, available for PLC, DCS, etc;
(Optional) Four-wire system RS485 digital signal output; (Optional) Frequency signal 200~1000Hz output; Two-level relay output:220VAC 0.5A, 5VDC 0.5A Two sets of passive relays (24VDC 2A) |
| Installation Means | Wall mounted, Pipe type (Thread:M40*1.5 ) |
| Main material | Shell (Die casting aluminum) , Air chamber (Hard alumina) |
| Explosion-proof Index | Exd IIC T6 Gb(Combustible gas) Exd ib IIC T6 Gb(Toxic gas) |
| Protection Grade | IP66 |
| Electrical Interface | 3/4″NPT(Female Screw)、1/2″NPT(Female Screw) |
| Transmit Distance | ≤2000m (If more than 2000m, can add the repeater.) |
| Dimension | 185 mm×137.2 mm×90.7mm(L×W×H) |
| Weight | About 1.6Kg |
| Standards | GB15322.1-2003, GB3836.1-2010, GB3836.2-2010, GB3836.4-2010, GB12358-2006 |
| Warranty | 12months |
| Certificate | CNEx, CE, RoHS |
Target gas list:
| Gas | Detecting Range | Alarm Threshold | Sensor Type |
| NH3 | 0-100 PPM | 25 PPM / 50 PPM | Electrochemical sensor |
| Cl2 | 0-50.0 PPM | 10 PPM / 20 PPM | |
| H2 | 0-1000 PPM | 50 PPM / 100 PPM | |
| CH2O | 0-100 PPM | 25 PPM / 50 PPM | |
| O2 | 0-30.0%vol | 18.5%vol / 23.5%vol | |
| H2S | 0-100 PPM | 10 PPM / 20 PPM | |
| HCl | 0-30.0 PPM | 5.0 PPM / 10.0 PPM | |
| HCN | 0-50.0 PPM | 5.0 PPM / 10.0 PPM | |
| PH3 | 0-20.0 PPM | 0.3 PPM / 0.6 PPM | |
| HF | 0-10.0 PPM | 3.0 PPM / 6.0 PPM | |
| NO | 0-250 PPM | 25 PPM / 50 PPM | |
| CO | 0-500 PPM | 35 PPM / 70 PPM | |
| SO2 | 0-20.0 PPM | 2.0 PPM / 10.0 PPM | |
| ClO2 | 0-50.0 PPM | 0.3 PPM / 0.5 PPM | |
| NO2 | 0-20.0 PPM | 1.0 PPM / 2.0 PPM | |
| C2H4O | 0-100 PPM | 10 PPM / 20 PPM | |
| O3 | 0-20.0 PPM | 5.0 PPM / 10.0 PPM | |
| CH4 | 0-100%LEL | 25%LEL / 50%LEL | Catalytic combustion sensor |
| C3H8 | 0-100%LEL | 25%LEL / 50%LEL | |
| H2 | 0-100%LEL | 25%LEL / 50%LEL | |
| NH3 | 0-100%LEL | 25%LEL / 50%LEL | |
| C2H4O | 0-100%LEL | 25%LEL / 50%LEL | |
| CH3CH3 | 0-100%LEL | 25%LEL / 50%LEL | |
| C2H4 | 0-100%LEL | 25%LEL / 50%LEL | |
| C4H10 | 0-100%LEL | 25%LEL / 50%LEL | |
| C4H8 | 0-100%LEL | 25%LEL / 50%LEL | |
| C7H8 | 0-100%LEL | 25%LEL / 50%LEL | |
| C8H10 | 0-100%LEL | 25%LEL / 50%LEL | |
| CH4O | 0-100%LEL | 25%LEL / 50%LEL | |
| C2H6O | 0-100%LEL | 25%LEL / 50%LEL | |
| C3H4O | 0-100%LEL | 25%LEL / 50%LEL | |
| C2H3Cl | 0-100%LEL | 25%LEL / 50%LEL | |
| C3H9N | 0-100%LEL | 25%LEL / 50%LEL | |
| CH3Br | 0-100%LEL | 25%LEL / 50%LEL | |
| CO2 | 0-5.0%vol | 1.0%vol / 3.0%vol | NDIR infrared sensor |
| 0-5000ppm | 800 PPM / 1500 PPM | ||
| CH4 | 0-5.0%vol
0-100%vol |
1.0%vol / 3.0%vol
5%vol / 10%vol |
Remark: If you need gas or measuring range not listed on the above, pls send us your details requirments for further discussion.
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.

Every unit is assembled on our own production line, then put through our in-house quality control before it ships. Each instrument undergoes a full inspection, a burn-in aging test and precision calibration, and is finally standardized against reference gases to verify accuracy at the point of delivery. Nothing leaves our factory untested. We also welcome OEM and ODM projects, and every product is backed by our warranty support. Controlling the process from assembly to final calibration is how we keep quality consistent and respond quickly to custom requirements.
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




