The nitric oxide (NO) gas sensor is designed for accurate nitric oxide detection and concentration monitoring in industrial processes, chemical plants, and environmental monitoring systems. It offers a sensitivity of 400 ± 100 nA/ppm, a response time of ≤30 seconds, and a resolution of 1 ppm for detection ranges up to 1000 ppm. The 5000 ppm range provides a resolution of 2 ppm.

Multiple Detection Ranges

Strong Anti-Interference Capability
The Nitric Oxide (NO) Sensor is designed for nitric oxide detection in chemical plants, industrial production facilities, and industrial emission monitoring systems. It supports flue gas monitoring, exhaust emission testing, boiler combustion monitoring, and air pollution monitoring to help assess NO concentrations and improve industrial process and emission control.
| Model | SISCO-GS-S4NO |
| Detection Principle | Electrochemical Three-Electrode |
| Detection Range | 0-50ppm, 0-250ppm, 0-1000ppm, 0-5000ppm (optional) |
| Maximum Load Concentration | 1000ppm |
| Sensitivity | 400±100 nA/ppm |
| Zero Drift | -2~10ppm |
| Resolution | 1ppm (0-50/250/1000ppm), 2ppm (0-5000ppm) |
| Response Time | ≤30s |
| Bias Voltage | +300mV |
| Load Resistance | 5~30Ω |
| Temperature Range | -30~50°C |
| Humidity Range | 15%~90% RH (Non-condensing) |
| Repeatability | <±2% Signal/Month |
| Long-term Stability | <2% Signal/Month |
| Linearity | Linear up to 1000ppm |
| Operating Pressure | 90~110 kPa |


| Interfering Gas | Gas Concentration Used (ppm) | Displayed Value (ppm/NO) |
| CO | 100 | 0 |
| SO₂ | 23 | 2 |
| H₂S | 26 | 35 |
| Cl₂ | 18 | 1.5 |
| NO₂ | 20 | 10 |
| HF | 10 | 1 |
Q1: What is a nitric oxide (NO) gas sensor used for?
A1: A nitric oxide (NO) gas sensor detects and measures NO concentrations in industrial processes, chemical plants, air pollution monitoring, and industrial emission detection. It helps monitor nitric oxide levels for environmental monitoring and gas safety applications.
Q2: What is the detection range of the SISCO NO gas sensor?
A2: The SISCO NO gas sensor (Model: SISCO-GS-S4NO) offers four optional detection ranges: 0–50 ppm, 0–250 ppm, 0–1000 ppm, and 0–5000 ppm. Users can select the appropriate range according to their gas monitoring requirements.
Q3: How does an electrochemical NO gas sensor work?
A3: The SISCO nitric oxide gas sensor uses a three-electrode electrochemical detection principle to measure nitric oxide concentrations. It provides a response time of ≤30 seconds, a sensitivity of 400 ± 100 nA/ppm, and a resolution of 1 ppm for the 0–50 ppm, 0–250 ppm, and 0–1000 ppm ranges.
Tips: What factors should be considered when selecting a nitric oxide (NO) gas sensor?
When selecting a nitric oxide (NO) gas sensor, consider the required detection range, resolution, response time, operating temperature, and humidity conditions. The SISCO-GS-S4NO offers optional ranges from 0–50 ppm to 0–5000 ppm, a response time of ≤30 seconds, and an operating temperature range of -30°C to 50°C, making it suitable for different industrial gas monitoring and air pollution detection requirements.
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