Product Overview
The SX-GMSA Series is a smart gas sensor module that standardizes the interface for various gas sensors and converts sensor signals into
standardized digital output. It supports digital output and optional analog voltage output for easier integration and commissioning. The module features a high-strength aluminum-alloy housing, a wide DC 5–24 V supply range, and factory calibration for plug-and-play operation. Typical applications include gas alarm instruments, industrial gas detection, mine gas detection, ambient gas monitoring, and research or academic applications
Main Features
-
Standardized Module Design Unified interface and packaging across many different gas sensor types
-
Hot-Swappable Plug-and-play terminal connection without soldering
-
Factory-calibrated and ready to use; no recalibration or secondary development required
-
Multiple Output Signals Simultaneous digital (UART) and analog output
- Optional RS-485 output with standard Modbus RTU protocol
-
Broad sensor compatibility with electrochemical,catalytic-combustion, infrared, and PID technologies
-
Compact and lightweight design with high accuracy and fast, stable response
-
Fast warm-up and low power consumption with high resistance to interference
Product Application
|
Smart public-restroom gas
detection
|
Smart agriculture gas detection
|
Utility tunnel and pipe-gallery gas
detection
|
|
Smart manhole-cover gas
detection
|
Tunnel and roadway gas
detection
|
Smart livestock-farming gas
detection
|
|
Smart grain-storage gas detection
|
Underground parking-garage gas
detection
|
Research and environmental
monitoring
|
|
Industrial automation gas
detection, including inspection robots
|
Automotive electronics, smart fire safety, and test & measurement
instruments
|
|
Technical Data
| Measurement | |
| Model | SX-GMSA Series |
| Product Type | Industrial smart gas sensor module |
| Detection Method | Natural diffusion; flow-through version available upon request |
| Sensor Technologies | Electrochemical / Catalytic combustion / Infrared / Photoionization (PID) |
| Detection Gas | O₂, CO, H₂S, NO, NO₂, SO₂, CO₂, O₃, NH₃, CH₄, combustible gases, VOCs and other gases |
| Detection Range | Depends on the target gas and selected sensor |
| Warm-Up Time | 30–60 s |
| Accuracy & Output | |
| Accuracy | Depends on target gas and sensor technology |
| Resolution | 1 ppb to 1% VOL, depending on configuration |
| Communication Protocol | Modbus RTU |
| Digital Output | UART or RS-485, selectable |
| Analog Output | 0–2 V, optional |
| Output Type | Standardized digital concentration output; optional analog-voltage output |
| Baud Rate | 9600 bps |
| Data Format | 8 data bits, 1 stop bit, no parity |
| Default Modbus Address | 0xFF |
| Standard Detection Options | |
| Oxygen (O₂) | Range: 0–30% VOL; Accuracy: ±3% F.S.; Resolution: 0.1% VOL |
| Carbon Monoxide (CO) | Range: 0–1000 ppm; Accuracy: ±5 ppm or ±10%, whichever is greater; Resolution: 1 ppm |
| Hydrogen Sulfide (H₂S) | Range: 0–100 ppm; Accuracy: ±2 ppm or ±10%, whichever is greater; Resolution: 1 ppm |
| Carbon Dioxide (CO₂) | Range: 0–5% VOL or 0–5000 ppm; Accuracy: ±(0.05 + 5% of reading); Resolution: 0.01% VOL or 1 ppm |
| Methane (CH₄) | Range: 0–5% VOL or 0–100% VOL; Accuracy: ±5% F.S.; Resolution: 0.01% VOL or 1% VOL |
| Combustible Gas | Range: 0–100% LEL; Accuracy: ±5% F.S.; Resolution: 1% VOL |
| VOC / PID | Range: 0–10 ppm, 0–40 ppm, or 0–100 ppm; Accuracy and resolution depend on the selected configuration |
| Stability & Service Life | |
| Electrochemical Sensor Life | 2 years |
| Infrared Sensor Life | 5 years |
| Catalytic-Combustion Sensor Life | 2 years |
| Calibration | Factory-calibrated; supports up to six calibration points |
| Power | |
| Supply Voltage | 5–24 V DC |
| Electrochemical Sensor Power | Typically 15 mW |
| Infrared Sensor Power | Typically 100 mW |
| PID Sensor Power | Typically 110 mW |
| Catalytic-Combustion Sensor Power | Typically 300 mW |
| Power Consumption | Depends on the selected sensor technology |
| Environmental Conditions | |
| Operating Temperature | −20°C to +50°C |
| Operating Humidity | 10%–95% RH, non-condensing |
| Mechanical Data | |
| Housing Material | High-strength aluminum alloy |
| Overall Dimensions | Ø41 × 67 mm |
| Weight | 35 g |
| Connector | 5-pin terminal connector |
| Connector Pitch | 1.25 mm |
| Wiring | GND / VCC / RX or 485B / TX or 485A / Analog output |
Certifications & Compliance
Related Products
Ready to upgrade your sensing infrastructure?
You can directly input your requirements and the AI will automatically match the most suitable model.
