Product Overview
The INIR2-BU1.8 is a user-friendly digital Gas Sensor designed for gas leakage detection in industrial and residential environments. Utilizing SGX Sensortechs non-dispersive infrared technology and power-efficient CORTEX microcontrollers, it offers high flexibility and functionality. The sensor provides a linear output proportional to the applied gas concentration, featuring temperature compensation, good accuracy, low voltage DC power supply, and simple implementation. Its key applications span Agriculture, Automation & Control, Indoor Air Quality, Industrial Health & Safety, and Waste Management. The device is designed for use in hazardous areas and is certified for explosive atmospheres (EX).
Product Attributes
- Brand: SGX Sensortech
- Model: INIR2-BU1.8
- Technology: Non-dispersive infrared (NDIR)
- Origin: Poland
- Certifications: ATEX, IECEx
- Hazardous Area Designation: Designed for use in Hazardous Areas, Certified for use in Explosive Atmospheres (EX)
- Body Material: Stainless Steel
Technical Specifications
| Specification | Min | Typical | Max | Notes |
| Gas Range | 0 | | 1.8% volume | Linear approximation |
| Resolution | | | 20ppm | High Resolution |
| Detectivity Level | | 100ppm | | |
| Power Supply Voltage | 3.2 VDC | 3.3 VDC | 5.25 VDC | |
| Average Current Consumption | 30mA | 32mA | 35mA* | *Inrush Current can be up to 60mA |
| Operating Humidity | 0% | 50% | 99% | |
| Storage Humidity | 0% | 50% | 90% | |
| Operating Temperature | -40C | | 75C | |
| Storage Temperature | -20C | | 55C | |
| Temperature Cycle Limits | | 0.8C/min | 1.3C/min | |
| Operating Pressure | 80kPa | | 120kPa | Pressure compensation required |
| Storage Pressure | 80kPa | | 120kPa | |
| Analog Output Resolution | | 12-Bit | | 0-2.5 Volts DC Max |
| UART Baud Rate (Default) | | 38400 | | Options: 115200, 19200, 9600 |
| Weight | 25 g | 29 g | 33 g | |
| Warm-Up Time | | 45 seconds | | After power ON or mode change |
| Response Time (T90, without dust filter) | | | < 40 sec | |
| Power Consumption | | < 100mW | | Average |
| Logic Output LOW Voltage (VOL) | | | 0.6V | Maximum |
| Logic Output HIGH Voltage (VOH) | 2.0V | | | Minimum |
| Logic Input LOW Voltage (VIL) | | | 0.4V | Maximum |
| Logic Input HIGH Voltage (VIH) | 2.0V | | | Minimum |
Key Applications
- Agriculture
- Automation & Control
- Indoor Air Quality
- Industrial Health & Safety
- Waste Management
Certifications & Standards
| Certification/Standard | Details |
| ATEX | I M2 Ex db I Mb, II 2G Ex db IIC Gb |
| IECEx | IECEx OBAC 20.0006U |
| Standards | EN 60079-0, IEC 60079-1 |
Order Information
| Part Number | Description |
| INIR2-BU1.8 | Butane sensor |
| INIR-EK4 | Evaluation Kit |
