SKU: SEN0659
This infrared CO2 sensor uses NDIR technology for accurate air CO2 detection. It has a 400~5000PPM range, supports manual calibration, and a 5s response time (indicator flashes on response). With RS485 + Modbus-RTU, it connects to Arduino UNO via DFR0845 easily. IP65 protection (waterproof breathable membrane) suits indoor, pipeline, greenhouse, and fresh air system monitoring.
Downloadable Resources
1. Example Code for Arduino-Read CO2 Value
This project demonstrates how to read CO2 concentration values from the RS485 Infrared CO2 Sensor (400-5000ppm) using an Arduino board. Users will learn to interface with the sensor via the RS485 protocol, implement Modbus-RTU communication, and process raw sensor data into readable CO2 values.
Reference
The article provides an in-depth explanation of communication protocols for CO2 sensors, emphasizing RS485 and Modbus-RTU, detailing data frames, error checking with CRC, and sensor calibration methods.
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