Oxygen Concentration Sensor, 0–30% Linear/30–100% Non-Linear

An SUCH oxygen concentration sensor is a gas sensor used to measure oxygen content in air or mixed gas environments. This sensor delivers stable O2 detection with 0–30% linear output, 30–100% non-linear output, ABS housing, and long-term drift below 2% per month. It is suitable for ventilators, oxygen concentrators, blood gas analyzers, gas monitoring instruments, and oxygen safety applications.

Feature

• The SUCH oxygen concentration sensor offers a wide measurement range with a 0~30% linear output, 30~100% non-linear output, enabling precise detection of oxygen concentration.
• The ABS housing structure is lightweight and durable, featuring easy installation. With a service life of up to 2 years, it operates stably when paired with a suitable 45Ω load resistor.
• Oxygen concentration sensor a T90<30s and monthly drift <2%, it rapidly captures oxygen changes, ensuring reliable data over extended use.
• The operating temperature range is wide, with strong adaptability to humidity levels from 0 to 99% RH, making it suitable for various industrial and environmental monitoring applications.

Dimension (unit: mm)

Usage Notes

1. Before initial use, allow this oxygen concentration sensor to warm up for at least 2 hours. Disconnected working and counter electrodes also require a 2-hour warm-up period.
2. Direct soldering of pins is strictly prohibited, as it may cause pin corrosion, bending, poor contact, and electrolyte leakage.

Detail

Pin Definition

Application Circuit Diagram

• Short-circuit the positive and negative terminals (Vsensor+ and Vsensor-) of the oxygen concentration sensor. The ADC value (MCU_ADC) read at this point is recorded as A₀.
• Place the oxygen sensor in air. The ADC value read at this point is recorded as A₁.
• Place the sensor in the target environment. The ADC value read at this time is recorded as Aₓ.
• The formula for calculating oxygen concentration in the target environment is: Oxygen Concentration = (Aₓ − A₀) × 20.9 / (A₁ − A₀) × 100%