The DSD13-G4250K-S is an electrochemical oxygen sensor developed and manufactured by Daohe Shun. Oxygen undergoes oxidation-reduction reactions at the working electrode and counter electrode, generating an electric current. The magnitude of the current is directly proportional to the oxygen concentration and follows Faraday's law. By detecting the resulting current, the volume fraction of oxygen can be determined.
Features
* High sensitivity, linearity, and accuracy towards oxygen
* Excellent resistance to interference
* Low power consumption and compact size
* Outstanding repeatability and stability.
Applications
* Oxygen monitoring in smart homes and commercial air purifiers
* Oxygen monitoring in petroleum extraction, chemical production, and mining areas
* Oxygen monitoring in underground parking lots
* Oxygen monitoring in vehicle interiors
* Oxygen monitoring in medical equipment.
Dimensions
Figure 1: Sensor Structure Diagram
Main Technical Specifications
Product Model | DSD13-G4250K-S |
Detected Gas | Oxygen (O₂) |
Concentration Detection | 1~25% vol. |
Overload detection | 30% vol. |
Output information | (0.10 ± 0.03) mA (in air) |
Repeatability | ± 2% |
Resolution | 0. 5ppm |
Response time (t90) | ≤15 Seconds |
Long-term drift. | <2% / Months |
Baseline Drift | <0. 6% vol. |
Recovery time. | <60 Seconds |
Expected lifespan. | ≥2 years |
Operating temperature. | -20~50℃ |
Recommended Storage Temperature | 0~20℃ |
Operating Pressure Range | 0.1 Mpa ±20% |
Recommended Load Voltage | 100 Ω |
Bias Voltage | No specific requirement. |
Operating Humidity | 5-95% RH (non-condensing) |
Enclosure Material | ABS |
Weight | <18.5 g |
