NDIR (Non-Dispersive Infrared) Gas Sensors Market, Emerging Trends, Technological Advancements, and Business Strategies 2025-2032

The global NDIR (Non-Dispersive Infrared) Gas Sensors Market was valued at 904 million in 2024 and is projected to reach US$ 1459 million by 2031, at a CAGR of 7.3% during the forecast period.

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NDIR (Non-Dispersive Infrared) Gas Sensors Market Overview

Non-Dispersive Infrared (NDIR) gas sensors utilize the infrared absorption characteristics of specific gas molecules—such as CO₂—to measure their concentration in the air.

How NDIR Gas Sensors Work:
Infrared Light Source: Emits IR rays through the gas sample in the measuring tube.

Gas Absorption: Target gas molecules absorb part of the infrared light at specific wavelengths.

Filter & Detector: Remaining IR light passes through a filter and is measured by an infrared detector.

Selective Absorption: Ideally, only the target gas absorbs IR at the selected wavelength, but overlaps can occur due to the presence of multiple gases, leading to cross-sensitivity.

Key Features:
Can detect over 100 different gases.

Measures concentrations from ppm (parts per million) to percentage levels.

Non-contact and non-consuming measurement method.

Cross-sensitivity can be managed via:

Compensation testing, or

Optimized spectral range selection.

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