STG-EA22-F4.26F3.91 NDIR Gas Sensor High Sensitivity NTC Compensation 1.85×1.85mm Window -30~85°C | SENBA

The STG-EA22-F4.26F3.91 from SENBA’s NDIR Series is a high-performance non-dispersive infrared gas sensing module designed for precise and stable gas detection in indoor and industrial environments. Featuring high sensitivity and integrated NTC thermistor compensation, it ensures excellent temperature stability and reduced signal drift for reliable long-term operation.

With an optical window size of 1.85×1.85mm, the sensor provides efficient infrared transmission while maintaining enhanced detection accuracy. It also features a low noise voltage of 28.68nV/Hz¹ᐟ², enabling highly precise gas concentration measurements with improved signal quality and stability.

Designed for robust environmental performance, the STG-EA22-F4.26F3.91 operates within a temperature range of -30°C to +85°C and supports storage conditions from -30°C to +100°C, ensuring durability in demanding applications.

This NDIR sensor is widely used in indoor air quality monitoring systems, central ventilation and HVAC equipment, in-car air purification systems, and industrial gas detection systems, providing dependable and accurate infrared sensing performance.

Key Features:

• NDIR (Non-Dispersive Infrared) gas sensing technology
• High sensitivity detection performance
• Integrated NTC thermistor compensation
• Window size: 1.85 × 1.85mm
• Ultra-low noise voltage: 28.68nV/Hz¹ᐟ²
• Operating temperature: -30°C to +85°C
• Storage temperature: -30°C to +100°C
• Stable and accurate long-term measurement

Applications:

• Indoor air quality monitoring systems
• HVAC and central ventilation equipment
• In-car air purification systems
• Industrial gas detection systems
• Environmental monitoring devices
• Smart air safety and control systems