- Multi-parameter Water Analyzer
- Single-Parameter Water Aalyzer
- DO Sensor
- Trace DO Sensor
- CO₂ Sensor
- COD Sensor
- EC TDS Sensor
- Salinity EC TDS Sensor
- TSS Sensor
- Turbidity Sensor
- PH Sensor
- ORP
- Ion Selective Sensor
- Ammonia Nitrogen Sensor
- Oil in Water Sensor
- Blue-Green Algae Sensor
- Chlorophyll Sensor
- Residual Chlorine Sensor
- Marine Current Sensor
0102030405
China CO2 Probe - Dissolved Carbon Dioxide Sensor for Water by Reliable Suppliers and Factory
Product Parameters
| Product Name | Dissolved CO₂ in water |
| Range | 2000PPM / 10000PPM / 50000PPM range optional |
| Accuracy | ≤ ±5% FS |
| Operating Voltage | DC 5V |
| Material | Polymer Plastic |
| Working Current | 60mA |
| Output Signal | UART / Analog Voltage / RS485 |
| Cable Length | 5m, can be extended according to user need |
| Application | Tap water treatment, swimming pool water quality monitoring, and industrial wastewater treatment. |
Product Features
🔬 1. Advanced Detection Technology
NDIR Infrared Absorption Principle: Ensures high accuracy and strong anti-interference capability for dissolved CO₂ measurement.
Dual-Path Reference Compensation: Patented optical cavity and imported light source enhance stability and lifespan.
⚙️ 2. Flexible Output & Calibration
Multiple Output Modes: UART, IIC, analog voltage, and PWM frequency outputs for versatile integration.
Smart Calibration: Zero, sensitivity, and clean air calibration commands, plus a manual MCDL pin for field adjustments.
🛡️ 3. Durable & User-Friendly Design
Convection Diffusion & Protective Cover: Enhances gas diffusion speed and protects the permeable membrane.
Removable Waterproof Structure: Easy to clean and maintain, ideal for harsh or humid environments.
🌐 4. Broad Application Scenarios
Water Quality Monitoring: Ideal for aquaculture and environmental protection.
Smart Device Integration: Compatible with HVAC, robots, vehicles, and smart homes for air quality management.
📊 5. Outstanding Technical Specifications
High Accuracy: Detection error ≤±5% FS, repeatability error ≤±5%.
Fast Response: T90 response time of 20s, preheating time of 120s.
Long Lifespan: Over 5 years with wide temperature tolerance (-20~80°C storage, 1~50°C operation).
✅ 6. Validated Performance
Beverage CO₂ Testing: Dynamic CO₂ concentration data in beverages (e.g., beer, coke, Sprite) demonstrates reliability.
Application
- Water Treatment Plants: Monitor CO₂ levels to optimize chemical dosing and prevent corrosion in pipelines.
- Agriculture & Aquaculture: Ensure optimal CO₂ levels for plant growth in hydroponics or fish respiration in recirculating systems.
- Environmental Monitoring: Deploy in rivers, lakes, or wastewater treatment plants to track CO₂ emissions and ensure regulatory compliance.
- Beverage Industry: Validate carbonation levels in beers, sodas, and sparkling waters during production and packaging.
Digital RS485 Water Quality Sensors Technical Data
| Parameter | Model | Range | Accuracy |
| DO sensor | LMS-DO10B | 0-20mg/L, 0-60℃ | ±0.1-0.3mg/L |
| DO sensor | LMS-DO10C | 0-20mg/L, 0-60℃ | ±0.3mg/L |
| Trace DO sensor | LMS-TDO100 | 0-2000ppb, 0-50℃ | ±1ppb |
| PH sensor | LMS-PH100 | 0-14pH | ±0.02pH |
| ORP sensor | LMS-ORP100 | ±1000.0 mV | ±0.2 mV |
| EC/TDS sensor | LMS-TDS102 | CT: 0-9999uS/cm; 0-100mS/cm; TDS: 0-10000ppm |
±2.5%FS |
| Salinity/EC/TDS sensor | LMS-SAL104 | Conductivity: 0.1-500 mS/cm TDS: 0-60000ppm Salinity: 0-500.00ppt |
±1.5%FS |
| COD sensor | LMS-COD100 | COD: 0.1-1500mg/L TOC: 0.1-750mg/L BOD: 0.1-900mg/L Turbidity: 0.1-4000NTU Temperature: 0-50℃ |
±5% equiv.KHP Temperature: ±0.5℃ |
| TSS sensor | LMS-TSS100 | 0-50000mg/L / 0-120000mg/L | ±10%FS or 10 mg/L |
| Turbidity sensor | LMS-TUR10L | 0-100NTU | ±10%FS or 0.3 NTU |
| Turbidity sensor | LMS-TUR10H | 0-3000NTU | ±10%FS or 0.3 NTU |
| CO2 sensor This Product | LMS-CO2100 | 2000PPM / 10000PPM / 50000PPM | ±5%FS |
| Ammonia Nitrogen sensor | LMS-NH4100 | 0-1000 mg/L | ±5%FS |
| Ion Selective sensor | LMS-ION100 | 0-1000 mg/L | ±5%FS |
| Oil in Water sensor | LMS-OIL100 | 0-50 mg/L; 0-5 mg/L | ±3%FS |
| Chlorophyll sensor | LMS-CHL100 | 0-500ug/L | ±3%FS |
| Blue-Green Algae sensor | LMS-BGA100 | 0-2000,000 cells/ml | ±3%FS |
| Residual Chlorine sensor | LMS-HCLO100 | 0-20.00 ppm | ±5%FS |
| Marine Current sensor | LMS-Current100 | Temperature: -3℃ - 45℃ Velocity of flow: 0-500 cm/s Flow direction: 0-359.9° |
±0.05℃ ±1 cm/s or ±2% ±2° |
Frequently Asked Questions (FAQ)
Q What measurement ranges are available for the dissolved CO₂ sensor?
The dissolved CO₂ sensor offers three selectable measurement ranges: 2000 PPM, 10000 PPM, and 50000 PPM, allowing it to be configured for various application requirements from low-concentration monitoring to high-concentration industrial environments.
Q What output signals does the CO₂ sensor support?
The sensor supports multiple output modes including UART, IIC, analog voltage, PWM frequency, and RS485, making it highly versatile and easy to integrate into existing control systems, PLCs, or microcontrollers.
Q What is the operating principle of the dissolved CO₂ sensor?
The sensor uses the NDIR (Non-Dispersive Infrared) Absorption Principle combined with dual-path reference compensation. This patented optical cavity design with an imported light source ensures high accuracy, excellent anti-interference performance, and a long operational lifespan exceeding 5 years.
Q What are the main application scenarios for this dissolved CO₂ sensor?
This sensor is widely used in water treatment plants (pipeline corrosion prevention), agriculture & aquaculture (hydroponics and recirculating fish systems), environmental monitoring (rivers, lakes, wastewater plants), and the beverage industry (carbonation level validation for beers, sodas, and sparkling waters).
Q How is the sensor calibrated, and can it be done in the field?
Yes, the sensor supports zero calibration, sensitivity calibration, and clean air calibration via software commands. Additionally, a manual MCDL pin is provided for convenient on-site field adjustments without the need for specialized equipment.
Q Is the dissolved CO₂ sensor suitable for harsh or humid environments?
Yes. The sensor features a removable waterproof structure and a protective cover with convection diffusion design. It operates reliably in temperatures from 1°C to 50°C and can be stored in conditions ranging from -20°C to 80°C, making it well-suited for demanding industrial and outdoor environments.