Back to Amphenol

Amphenol SGX Sensortech INIR2 Digital Gas Sensors

Amphenol SGX Sensortech INIR2 Digital Gas Sensors are user-friendly digital gas sensors that use non-dispersive infrared technology. These gas sensors are designed to detect refrigeration leakage in industrial and residential environments. The INIR2 gas sensors are developed with the generation of power-efficient cortex® microcontrollers with high flexibility and functionality. The INIR2 gas sensors feature temperature compensation, good accuracy, low-voltage DC power supply, and simple implementation into the end-user system. Typical applications include agriculture, indoor air quality, waste management, environments with varying pressure, automation and control, and industrial health and safety.

Features

  • Gas sensor with automatic switchover between ranges
  • Analog output of gas concentration
  • Serial port communication (UART)
  • Full faults diagnostics and error generation
  • Cyclic Redundancy Check (CRC)
  • Evaluation kit available including PC software for easy testing and production calibration functions
  • Design for use in hazardous areas
  • Certified for use in Explosive Atmospheres (EX)

Specifications

  • 3.2VDC to 5.25VDC supply voltage range
  • 32mA typical average current consumption
  • -40°C to 75°C operating temperature range
  • 80kPa to 120kPa operating pressure range
  • 0% minimum to 99% maximum operating humidity range
  • Available Concentrations:
    • Carbon Dioxide 5% and 100%
    • Methane 5% and 100%
    • Butane 1.8%
    • Propane 2.1%
    • R32 100%

Applications

  • Environments with varying pressure
  • Agriculture
  • Automation and control
  • Refrigeration
  • Indoor air quality
  • Industrial health and safety
  • Waste management

Dimension Diagram

Mechanical Drawing - Amphenol SGX Sensortech INIR2 Digital Gas Sensors

Additional Resources

View Results ( 44 ) Page
Part Number Datasheet Sensor Type Operating Supply Voltage Current Rating
INIR2-ME5-PC INIR2-ME5-PC Datasheet Methane (CH4) 3.3 V 32 mA
INIR2-CD100-PC INIR2-CD100-PC Datasheet Carbon Dioxide (CO2) 3.3 V 32 mA
INIR2-ME100-PC INIR2-ME100-PC Datasheet Methane (CH4) 3.3 V 32 mA
INIR2-ME100 INIR2-ME100 Datasheet Methane (CH4) 3.3 V 32 mA
INIR2-CD100 INIR2-CD100 Datasheet Carbon Dioxide (CO2) 3.3 V 32 mA
INIR2-CD5 INIR2-CD5 Datasheet Carbon Dioxide (CO2) 3.3 V 32 mA
INIR2-ME5 INIR2-ME5 Datasheet Methane (CH4) 3.3 V 32 mA
INIR2-CD5-PC INIR2-CD5-PC Datasheet Carbon Dioxide (CO2) 3.3 V 32 mA
INIR2-CD100-POS Carbon Dioxide (CO2)
INIR2-CD100-PC-POS Carbon Dioxide (CO2)
Published: 2024-04-03 | Updated: 2026-01-19