Industrial Infrared CO2 Sensor, UART, 0-2000ppm to 0-100% Vol

This industrial infrared CO2 sensor is a compact gas sensor for accurate carbon dioxide monitoring in harsh environments. It supports 0-2000ppm to 0-100% Vol detection, UART and 0.4-2V output, temperature compensation, IP54 protection, and T90 ≤30s response. Suitable for HVAC and refrigeration systems, industrial process control, greenhouse farming, factory safety, and continuous CO2 gas monitoring.

Feature

• High-precision non-dispersive infrared detection technology ensures rapid and stable CO₂ concentration monitoring across the 0-2000 ppm to 0-100% Vol range.
• The SUCH industrial CO₂ sensor features temperature compensation, maintaining precise output even in complex environments ranging from -20°C to 60°C.
• The output signal supports both UART and 0.4~2V voltage interfaces, offering strong compatibility, with an IP54 protection rating.

Dimension (unit: mm)

Analog Voltage Output

• Vout output voltage range (0.4~2V) corresponds to gas concentration (0~full scale).
• Connect the CO2 sensor's Vin terminal to 5V, GND terminal to power ground, and Vout terminal to the ADC input.
• After the preheating period, the sensor outputs a voltage value representing gas concentration from the Vout terminal.
• When a fault is detected during self-test, the CO2 sensor outputs a voltage of 0V.

Pin Definition

 

Pin	Description
PIN1	GND
PIN2	Voltage Input
PIN3	UART (RXD)
PIN4	Vout (0.4 ~ 2V)
PIN5	UART (TXD)