The intelligent underwater CO2 sensor is a gas detection sensor based on the NDIR infrared absorption principle, suitable for applications requiring the detection of CO2 concentration in solutions. Featuring a patented optical cavity design, imported light source, and dual-channel detector, it achieves spatial dual-path reference compensation. It exhibits excellent selectivity, is oxygen-independent, and has a long service life. The sensor employs a convective diffusion ventilation method and a protective cover, which accelerates gas convective diffusion while safeguarding the ventilation membrane. Its removable structure facilitates cleaning of the sensor housing. The unique waterproof design is also removable, enabling easy maintenance and cleaning by customers.
NDIR Infrared Absorption Principle
●Innovative waterproof and detachable design for easy cleaning
●Suitable for measuring CO₂ concentration in various liquids
●Advanced circuitry ensures high accuracy and stable performance
●Compact and lightweight housing for easy on-site installation
Model | LS CO2-1PDNOG |
Measurement Principle | NDIR Infrared Absorption Principle |
Range | 0~2000ppm |
Measurement Accuracy | ±20ppm or ±5% of true value, whichever is greater |
Resolution | 4ppm~8ppm |
Operating Temperature | -20~+60℃ |
Operating Pressure | <0.1MPa |
Power Supply | 5V DC±5% (RS485 and 4-20mA output power supply is 12V) |
Signal Output | 4~20mA, 0.4~3VDC, UART, IIC, PWM, RS485 |
Housing Material | ABS (black) |
Installation Method | Immersion installation |
Cable Length | 5 meters, other lengths can be customized |
Calibration Method | Standard calibration |
Power Consumption | 0.2W@12V |
Protection Level | IP68 |
Size | D37mm, L111mm |