| Image | Part Number | Description / PDF | Quantity | Rfq |
|---|---|---|---|---|
 |
City Technology |
SENSOR IC PH3 3E 5 LT 7 SERIES |
0 |
|
|
City Technology |
TX H2 T3HYT 0-2000PPM SMD O/P |
0 |
|
|
City Technology |
SENSOR COH2S 7COSH 7 SERIES |
0 |
|
|
City Technology |
SENSOR 3ST/F(G) 3 SERIES |
0 |
|
|
Honeywell Sensing and Productivity Solutions |
MF010 HIGH TEMP OXYGEN SENSOR |
0 |
|
|
Honeywell Sensing and Productivity Solutions |
MF010 LOW TEMP OXYGEN SENSOR |
0 |
|
|
City Technology |
SENSOR A5F REV2 5 SERIES |
0 |
|
|
City Technology |
SENSOR 3ST/F(S) 3 SERIES |
0 |
|
|
City Technology |
SENSOR IC NH3 100 LT 7 SERIES |
0 |
|
|
City Technology |
SENSOR IC NO 100 TRANSMITTER |
0 |
|
|
Honeywell Sensing and Productivity Solutions |
SENSOR O2 C/S ET STANDARD |
0 |
|
|
Honeywell Sensing and Productivity Solutions |
SENSOR OXYGEN |
0 |
|
|
City Technology |
SENSOR NO2 7NDH 3 SERIES |
0 |
|
|
City Technology |
TX SO2 T3SF 0-2000PPM SMD O/P |
0 |
|
|
City Technology |
TX NO T3NT 0-50PPM SMD O/P |
0 |
|
|
City Technology |
SENSOR 3ST/F(R) 3 SERIES |
0 |
|
|
City Technology |
SENSOR SO2 7SH 7 SERIES |
0 |
|
|
City Technology |
TX HCL T3HL 0-100PPM SMD O/P |
0 |
|
|
Renesas Electronics America |
MOD FLAMMABLE SENSOR |
0 |
|
|
City Technology |
TRANDUCER CL2 3MCLH 1OMV/PPM |
0 |
|
Gas sensors are detection devices that identify and measure gas concentrations in the environment. They convert chemical interactions with gas molecules into electrical signals for quantitative analysis. These sensors play a critical role in industrial safety, environmental monitoring, healthcare, and smart home systems by preventing gas leaks, ensuring air quality, and enabling process control.
| Type | Functional Features | Application Examples |
|---|---|---|
| Electrochemical | High accuracy, stable baseline, requires oxygen | CO detectors, O2 monitors |
| Semiconductor | Low cost, broad detection range, temperature-dependent | Indoor air quality sensors |
| Catalytic Combustion | Explosive gas detection, requires periodic calibration | Industrial methane detectors |
| Infrared (IR) | Non-contact measurement, high selectivity | CO2 HVAC monitoring |
| Photoionization (PID) | VOC detection at ppm levels, UV lamp required | Environmental pollution monitoring |
A typical gas sensor consists of: - Sensing element (metal oxide/electrolyte membrane) - Signal conditioning circuit (amplifier, ADC) - Housing with gas inlet ports - Temperature/humidity compensation module - Communication interface (UART/I2C)
| Parameter | Description |
|---|---|
| Detection Range | Measurable gas concentration span (ppm to %LEL) |
| Sensitivity | Signal change per gas concentration unit (mV/ppm) |
| Response Time | T90 response speed (3-300 seconds) |
| Accuracy | Measurement error margin ( 2-10%) |
| Operating Temperature | Functional range (-20 C to +50 C typical) |
| Long-term Stability | Drift specification (5-15% per year) |
| Manufacturer | Product Series | Key Features |
|---|---|---|
| Honeywell | XNX Universal Transmitter | Dual-sensor redundancy |
| Figaro Engineering | TGS2600 | Low-power VOC detection |
| Membrapor | Toxic Gas Sensors | Eletrochemical cells for Cl2 |
| Senseair | K-30 CO2 Module | NDIR technology, 30ppm accuracy |
| AMS (Austria) | ENS160 MOX Sensor | AI-based gas discrimination |
Key consideration factors:
Emerging development trends include: - Miniaturization through MEMS technology - Multi-gas detection using AI pattern recognition - Wireless self-powered IoT sensor nodes - Enhanced selectivity via nanomaterial coatings - Reduced cross-sensitivity through hybrid sensing methods