Infrared CO2 Sensor, 0-5000ppm, TTL/RS485

With advanced NDIR infrared detection technology, the CO₂ sensor delivers superior interference resistance and high stability, enabling precise measurements within the 0-5000ppm range. Featuring default UART output with optional RS485/TTL module output, it achieves stable operation within just 1 minute of warm-up. Average current consumption is <60mA, ensuring energy efficiency and high performance.

Feature

• Universal smart infrared carbon dioxide gas sensor utilizing non-dispersive infrared (NDIR) technology to detect CO₂ in air, capable of measuring concentrations from 0 to 500 ppm.
• The SUCH CO₂ sensor features oxygen independence, stable performance, extended service life, and built-in temperature compensation.
• By integrating infrared absorption gas detection technology, micro-machining processes, and advanced circuit design, this CO₂ sensor delivers a compact, high-performance solution.
• It offers multiple output modes including UART, RS485/TTL modules, exhibits resistance to water vapor interference and poisoning, and boasts a long operational lifespan.

Dimension (unit: mm)

Analog Voltage Output

Pin Definition

 

Pin	Description
Pin 2	Vin Voltage Input Positive
Pin 1	GND Voltage Input Negative
Pin 4	DA (0.4 ~ 2V)
Pin 3	R (RXD) 0 ~ 3.0V Data Input
Pin 5	T (TXD) 0 ~ 3.0V Data Output