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Series 4 Electrochemical Gas Sensors
Amphenol SGX SensorTech electrochemical sensors detect toxic gases using little to no current draw
Amphenol SGX SensorTech 20 mm diameter Series 4 electrochemical sensors can detect toxic gases such as ammonia, carbon monoxide, ethylene oxide, hydrogen, hydrogen sulfide, nitric oxide, nitrogen dioxide, and sulfur dioxide. Electrochemical sensors detect gases by producing a chemical reaction between the gas and oxygen contained in the sensor. This reaction produces a small current, which is proportional to the concentration of the present gas. The sensor is, in effect, a type of fuel cell.
Features
- Absolute gas measurement
- Wide range of gases
- Measurement ranges: ppm/ppb
- Low cost
- Little to no current draw
- Excellent response
- Great linearity
- 20 mm diameter Series 4 housing
- Long lifetime
Applications
- Underground parking garages
- Mining
- Leak detection
- Handheld detectors
- Medical ventilators
- Air quality monitoring
- Air purifiers
- Firefighter equipment
- Environmental monitoring
Series 4 Electrochemical Gas Sensors
| Image | Manufacturer Part Number | Description | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|
 |  | SGX-4NH3-100 | SENSOR AMMONIA CURRENT OUTPUT | 32 - Immediate | $110.06 | View Details |
| | SGX-4NH3-300 | SENSOR AMMONIA CURRENT OUTPUT | 0 - Immediate | $126.24 | View Details |
|  | SGX-4NH3-1000 | SENSOR AMMONIA CURRENT OUTPUT | 14 - Immediate | $142.43 | View Details |
|  | SGX-4CO | SENSOR CARBON MONOXIDE | 452 - Immediate | $54.37 | View Details |
| | SGX-4CO-LC | SENSOR CARB MONOX CURRENT OUT | 0 - Immediate | $43.12 | View Details |
| | SGX-SURECO | 4 SERIES CO SENSOR - 1 000PPM | 0 - Immediate | $38.86 | View Details |
| | SGX-4ETO | SENSOR ETO CURRENT OUTPUT | 0 - Immediate | $126.24 | View Details |
|  | SGX-4H2-1000 | SENSOR HYDROGEN CURRENT OUTPUT | 30 - Immediate | $108.89 | View Details |
| | SGX-4H2-5000 | SENSOR ELECTROCHEMICAL HYDROGEN | 0 - Immediate | $117.46 | View Details |
| SGX-4H2-50K | SENSOR ELECTROCHEMICAL HYDROGEN | 0 - Immediate | $130.85 | View Details | |
| | SGX-4H2S-100 | SENSOR HYDROGEN SULFIDE CUR OUT | 167 - Immediate | $56.45 | View Details |
|  | SGX-4NO-250 | SENSOR NITRIC OXIDE CURRENT OUT | 11 - Immediate | $137.75 | View Details |
| | SGX-4NO2 | SENSOR NITROGEN DIOXIDE CUR OUT | 30 - Immediate | $68.58 | View Details |
| | SGX-4OX-EL | SENSOR OXYGEN CURRENT OUTPUT | 0 - Immediate | $83.95 | View Details |
|  | SGX-4SO2 | SENSOR SULFUR DIOXIDE CUR OUT | 26 - Immediate | $135.09 | View Details |
Related Parts
| Image | Manufacturer Part Number | Description | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|
|  | SGX_EVAL_EC | ELECTRO-CHEMICAL AND PELLISTOR G | 57 - Immediate | $194.57 | View Details |
|  | JAS769640AA | CALIBRATION FLOW HOOD ASSEMBLY ( | 19 - Immediate | $81.24 | View Details |
Published: 2025-09-16
