Description
The fluorescent oxygen sensor measures 0-25% oxygen and 0-300mbar partial pressure, operating at 4.5~5.5V with 7.5mA average current. It is precise and ideal for oxygen devices, glove boxes, exhaust systems, and portable monitors.
Specification
| Model | ATO-LOX-O2 |
| Operating Voltage | 5VDC (4.5VDC min.~5.5VDC max.) |
| Operating Current | <7.5mA (streaming one sample per second),<20mA Peak |
| Oxygen Concentration Range | 0~25% |
| Oxygen Partial Pressure Range | 0~300mbar |
| Atmospheric Pressure Range | 500~1200mbar |
| Oxygen Partial Pressure Accuracy | <2%FS |
| Atmospheric Pressure Accuracy | ±5mbar |
| Operating Environment | 10°C~45°C; 0~99%RH |
| Storage Environment | -30°C~60°C; 0~99%RH |
| Sensor Lifetime | >6 years |
Feature
- Long Lifespan: Designed for extended operational durability, ensuring reliable performance over time.
- Non-Consumptive: Does not consume oxygen during measurement, making it ideal for long-term monitoring applications.
- Eco-Friendly Design: Free from lead or other toxic materials, ensuring compliance with environmental standards and safe use.
- Cross-Gas Immunity: Highly resistant to interference from other gases, ensuring accurate oxygen detection in complex environments.
- Pressure and Temperature Compensation: Integrated compensation mechanisms for oxygen partial pressure and temperature variations, ensuring precise readings in fluctuating conditions.
- Insensitive to Atmospheric Pressure Changes: Provides high accuracy without being affected by changes in atmospheric pressure.
- Drift-Free Performance: Stable and reliable measurements with no signal drift over time, reducing the need for frequent recalibration.
- Low Power Consumption: Optimized for energy-efficient operation, suitable for battery-powered and portable devices.
- Rapid Response: Quickly detects and reports oxygen concentration changes, ideal for dynamic environments.
Size (Unit:mm)
Interface Definition
| Pin Number | Function |
| 1 | +5V |
| 2 | GND |
| 3 | UART TX |
| 4 | UART RX |
Application
Tips: Why is the sensor not affected by other gases?
The sensor’s design incorporates a high level of cross-gas immunity, meaning it is selectively sensitive to oxygen molecules while ignoring other gases that might be present in the environment. This is achieved through its specialized fluorescence-based detection technology, which relies on oxygen-specific interactions rather than chemical reactions. This makes the sensor highly reliable in environments where multiple gases coexist, such as industrial processing plants, automotive exhaust monitoring, or inert gas chambers.
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