The nitrogen dioxide (NO₂) gas sensor is designed for accurate nitrogen dioxide detection in air quality monitoring, industrial emission monitoring, and environmental gas detection systems. Its linear output, 2% output signal repeatability, and long-term stability of less than 2% signal change per month support consistent gas measurement performance.
Multiple Detection Ranges
- The NO₂ gas sensor offers ranges of 0–20 ppm, 0–100 ppm, and 0–200 ppm to meet different gas monitoring requirements.
- Uses an electrochemical three-electrode detection principle for nitrogen dioxide (NO₂) gas measurement.
- Integrates precision circuitry for reliable signal processing and improved resistance to electromagnetic interference.
- The nitrogen dioxide sensor provides a response time of less than 30 seconds for timely gas detection.
Stable Measurement Performance
- Features zero drift of 0–1 ppm and long-term stability of less than 2% signal change per month.
- Delivers 2% output signal repeatability and linear measurement characteristics for consistent detection results.
- Includes short-circuit and reverse-polarity protection to help protect the sensor circuitry during operation.
Applications
The NO₂ gas sensor is suitable for air quality monitoring, industrial emission detection, vehicle exhaust testing, and livestock ventilation systems. It can also be integrated into mobile robots, power plants, and environmental monitoring equipment for nitrogen dioxide detection and pollution control.
Vehicle Exhaust Monitoring
Robot
Industrial Emission Detection
Animal Husbandry
| Model | SISCO-GS-S4NO2 |
| Detection Principle | Electrochemical Three-Electrode |
| Detected Gas | NO2 (Nitrogen Dioxide) |
| Detection Range | 0-20 ppm, 0-100 ppm, 0-200 ppm |
| Maximum Load Concentration | 200 ppm |
| Sensitivity | -600 ±150 nA/ppm |
| Zero Drift | 0-1 ppm |
| Resolution | 0.5 ppm |
| Response Time | <30s |
| Bias Voltage | 0 mV |
| Load Resistance | 5-30Ω |
| Temperature Range | -30°C to 50°C |
| Humidity Range | 15%RH to 90%RH (Non-condensing) |
| Repeatability | 2% Output Signal |
| Long-term Stability | <2% Signal/Month |
| Linearity | Linear |
| Operating Pressure | 90 to 110 kPa |
| Warranty | 12 months after delivery |
| Service Life | 2 years |
Dimension (unit: mm)
Basic Test Circuit
Crossover Interference
| Interfering Gas | Gas Concentration (PPM) | Displayed Value (PPM/NO2) |
| CO | 400 | 0 |
| SO₂ | 5 | <3 |
| H₂S | 25 | <1 |
| Cl₂ | 11 | -2 |
| NO | 30 | 0 |
| C₂H₄ | 20 | 0 |
Q1: What is a nitrogen dioxide (NO₂) gas sensor?
A1: A nitrogen dioxide gas sensor detects NO₂ concentrations in ambient air and industrial environments. Common applications include air quality monitoring, industrial emission detection, vehicle exhaust monitoring, and environmental pollution control.
Q2: What is the detection range of the SISCO NO₂ gas sensor?
A2: The SISCO-GS-S4NO2 nitrogen dioxide sensor offers three detection range options: 0–20 ppm, 0–100 ppm, and 0–200 ppm. Users can select the appropriate range based on their gas detection equipment and monitoring requirements.
Q3: How does an electrochemical NO₂ sensor work?
A3: An electrochemical NO₂ sensor measures nitrogen dioxide through an electrochemical reaction that generates an electrical signal proportional to the gas concentration. The SISCO sensor uses a three-electrode electrochemical principle for NO₂ detection.
Tips: Can the NO₂ gas sensor be used for air quality monitoring and industrial emission detection?
Yes. The NO₂ sensor can be integrated into air quality monitoring devices, industrial gas detection systems, and environmental monitoring equipment to measure nitrogen dioxide levels. It is suitable for applications involving ambient air pollution monitoring and industrial emission assessment.
Thank you for buying industrial test and measurement equipment on SISCO.com, all products sold by SISCO and the partner cover a 12 months warranty, effective from the date of receiving the products.
What is covered?
SISCO is responsible for providing free spare parts, and free technical support to assist the customer to repair the defective products until the problem is solved.
What is not covered?
- Product purchased from anyone other than a SISCO store or a SISCO authorized reseller.
- Expendable parts.
- Routine cleaning or normal cosmetic and mechanical wear.
- Damage from misuse, abuse or neglect.
- Damage from use of parts other than SISCO approved.
- Damage from use outside the product’s usage or storage parameters.
- Damage from use of parts not sold by SISCO.
- Damage from modification or incorporation into other products.
- Damage from repair or replacement of warranted parts by a service provider other than a SISCO authorized service provider.
- Damage caused by the application environment not meeting the product usage requirements and the failure to perform preventive maintenance.
Shop on sisco.com for all of your industrial test and measurement equipment & accessories including portable detectors, meters, testers, scales, etc.
