Product Overview
The SX-GO2TMA Series is a miniature lead-free, long-life oxygen sensor. Oxygen is reduced at the working electrode and oxidized at the counter electrode, generating an electrical current. The output current is proportional to the oxygen concentration, allowing O₂ concentration to be determined from the measured current.
Main Features
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High Accuracy, Long Life —— Precise detection with extended operating life
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Fast Response, Fast Recovery —— 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
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High Resistance to Interference —— Low susceptibility to common interfering gases
- High Repeatability and Stability —— Consistent long-term performance
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Smaller Size, More Compact Construction —— Reduced footprint versus standard oxygen sensors
Product Application
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Oxygen alarms for mining applications
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Medical oxygen concentrators
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Air-quality monitoring instruments
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Underground parking garage and commercial air purification equipment
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In-cabin air-quality monitoring and vehicle cabin airpurification / fresh-air systems
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Technical Data
| Measurement | |
| Example Model | SX-GO2TMA-110 |
| Detection Principle | Three-electrode electrochemical |
| Detection Gas | Oxygen (O₂) |
| Detection Range | 0–25% VOL |
| Maximum Overload Concentration | 30% VOL |
| Sensitivity & Output | |
| Output Signal | 100 ± 20 µA in air |
| Zero Drift | 0.6% VOL |
| Resolution | 0.1% VOL |
| Linearity | Linear, S = K·ln[1 / (1−C)] |
| Output | Current proportional to O₂ concentration |
| Response | |
| Response Time | <20 s |
| Repeatability | 2% of output signal |
| Long-Term Stability | <5% signal/year |
| Stability & Service Life | |
| Shelf Life | 12 months after delivery |
| Service Life | 5 years |
| Electrical Data | |
| Bias Voltage | −600 mV |
| Load Resistance | 10 Ω |
| Environmental Conditions | |
| Operating Temperature | −30°C to +50°C |
| Operating Humidity | 15–90% RH, non-condensing |
| Operating Pressure | 90–110 kPa |
| Mechanical Data | |
| Body Diameter | Ø14 mm |
| Body Height | 9.6 mm |
| Pin Length | 3.5 mm |
| Pin Diameter | Ø0.8 mm |
| Top Diameter | Ø9 mm |
| Bottom Diameters | Ø11 mm / Ø8 mm |
| Dimensional Tolerance | ±0.2 mm |
| Cross-Interference | |
| Carbon Dioxide CO₂ | 0.00% O₂ equivalent reading at 5% |
| Hydrogen (H₂) | −0.2% O₂ equivalent reading at 2000 ppm |
Certifications & Compliance
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