Lead Free Oxyge Sensor with Temperature Compensation

This SUCH lead-free oxygen sensor is a temperature compensated electrochemical O2 sensor for accurate oxygen concentration monitoring. It provides 0–100% linear output and a stable 9–14mV signal in air for reliable gas detection performance. Suitable for oxygen analyzers, industrial gas detectors, safety alarms, laboratory instruments, and environmental O2 monitoring devices.

Feature

• The SUCH lead-free oxygen sensor features high sensitivity and outstanding linear response performance, with an output current of 9~14 mV (in air). It achieves precise linear detection within the 0~100% full range linear output, ensuring reliable and stable data.
• The oxygen sensor responds in under 15 seconds to rapid changes in oxygen concentration. It operates across a wide temperature range with superior resistance to humidity and heat, enabling continuous operation in high-humidity environments.
• Industrial-grade Molex 3-pin connector lead-free oxygen sensors operate on fuel cell principles, contain no internal lead components, and comply with ROHS standards.

Dimension (unit: mm)

Application Circuit Diagram

• Short-circuit the positive and negative terminals (Vsensor+ and Vsensor-) of the lead-free oxygen sensor. The ADC value (MCU−ADC) read at this point is recorded as A₀.
• Place the gas sensor in air. The ADC value read at this point is recorded as A₁.
• Next, place the high pressure oxygen sensor in the target environment. The ADC value read at this point is recorded as A_x.
• The formula for calculating oxygen concentration in the target environment is: Oxygen Concentration = (A_x - A₀) × 20.9÷(A₁ - A₀) × 100%

Pin Definition

Pin	Definition
1	Positive Pin
2	Negative Pin
3	Negative Pin