Air quality is a concern in all environments where people are present, especially industrial ones. If you are working on a project involving CO2 monitoring, you need to know about this sensor. DFRobot SEN0659 Industrial RS485 Infrared CO2 Sensor is a robust, high-accuracy monitoring device designed for reliable measurement of carbon dioxide concentrations across a 400ppm to 5000ppm range. Built on advanced non-dispersive infrared (NDIR) technology, the DFRobot SEN0659 delivers stable and precise readings with ±50ppm accuracy between 400ppm and 2000ppm and ±100ppm above 2000ppm, making the sensor suitable for a wide variety of environmental and industrial applications. The sensor offers a rapid 5s response time, manual calibration capability for enhanced precision, and an intuitive indicator light that provides clear visual feedback on operational status. Engineered for durability, SEN0659 features an IP65-rated enclosure with a threaded installation design and a waterproof, breathable membrane that protects internal components from dust and moisture while maintaining proper air exchange. Supporting RS485 communication via the standard Modbus-RTU protocol, this sensor integrates easily into monitoring systems and pairs seamlessly with modules such as the Gravity RS485-to-UART converter for Arduino-based setups. A rugged design and dependable performance make the DFRobot SEN0659 ideal for indoor air-quality monitoring, greenhouse CO2 management, pipeline detection, and fresh-air system control.
