Product Overview
The SX-GNOTSA Series is a potentiostatic electrochemical nitric oxide sensor. Nitric oxide and oxygen undergo oxidation–reduction reactions at the working electrode and counter electrode, respectively, generating an electrical current. The output current is proportional to the nitric oxide concentration, allowing NO concentration to be determined from the measured current.
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Main Features
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High Accuracy, Long Life —— Precise detection with extended operating life
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Fast Response, Fast return to zero —— Quick response with rapid baseline recovery
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Low Power, High Sensitivity —— Low power consumption with high sensitivity
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Wide Linear Range —— Robust performance across the measurement range
- Strong Anti-Interference —— Low susceptibility to common interfering gases
- High Repeatability and Stability —— Consistent long-term performance
Product Application
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Nitric oxide detection instruments
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Industrial on-site nitric oxide gas detection
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Atmospheric / ambient nitric oxide detection
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Smart municipal nitric oxide detection
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Environmental nitric oxide detection
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Technical Data
| Measurement | |
| Example Model | SX-GNOTSA-D80 |
| Detection Principle | Three-electrode electrochemical |
| Detection Gas | Nitric oxide (NO) |
| Detection Range | 0–250 ppm |
| Maximum Overload Concentration | 1000 ppm |
| Sensitivity & Output | |
| Sensitivity | 400 ± 100 nA/ppm |
| Zero Drift | −2 to 10 ppm |
| Resolution | 1 ppm |
| Linearity | Linear |
| Output | Current proportional to NO concentration |
| Response & Accuracy | |
| Response Time | ≤30 s |
| Repeatability | 2% of output signal |
| Long-Term Stability | <2% signal/month |
| Stability & Service Life | |
| Shelf Life | 12 months after delivery |
| Service Life | 2 years |
| Electrical Data | |
| Bias Voltage | +300 mV |
| Load Resistance | 5–30 Ω |
| Environmental Conditions | |
| Operating Temperature | −30°C to +50°C |
| Operating Humidity | 15–90% RH, non-condensing |
| Operating Pressure | 90–110 kPa |
| Mechanical Data | |
| Overall Dimensions | Approx. Ø20 × 16.95 mm |
| Pin Length | 4.40 mm |
| Pin Diameter | Ø1.5 mm |
| Bottom Outer Diameter | Ø17.9 mm |
| Electrode Area Diameter | Ø13.5 mm |
| Dimensional Tolerance | ±0.2 mm |
| Cross-Interference | |
| Carbon Monoxide CO |
0 ppm NO reading at 100 ppm |
| Sulfur Dioxide SO₂ | 2 ppm NO reading at 23 ppm |
| Hydrogen Sulfide H₂S | 35 ppm NO reading at 26 ppm |
| Chlorine Cl₂ | 1.5 ppm NO reading at 18 ppm |
| Nitrogen Dioxide NO₂ | 10 ppm NO reading at 20 ppm |
| Hydrogen Fluoride HF | 1 ppm NO reading at 10 ppm |
Certifications & Compliance
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