Seeed Studio SenseCAP SOLO CO2 5000 (A2) – NDIR CO2 Sensor is a digital NDIR CO2 concentration sensor that supports Modbus RS485 and SDI-12 communication protocols. This sensor features high performance and displays high accuracy, fast response, and superior stability. The NDIR CO2 is based on NonDispersive Infrared (NDIR) which can continuously collect and calculate the CO2 concentration in the air per unit volume and output in the form of a universal interface. The NDIR CO2 sensor is compact in size and can be easily integrated into various application scenarios.