SKU: SENS-0897
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Winsen ME2-O2-Ф20 Oxygen Gas Sensor Module - 0-25%Vol Electrochemical

₹3,389.00 (Inclusive of all taxes)
Out of Stock

The Winsen ME2-O2-Ф20 is an electrochemical oxygen sensor module designed for precise measurement of O2 concentration from 0 to 25% by volume. It provides a linear current output proportional to gas concentration, making it compatible with microcontroller ADCs and industrial signal conditioning circuits for air quality monitoring, safety systems, and environmental analysis.

Features

  • Electrochemical sensing principle for high-precision O2 concentration measurement (0-25%Vol).
  • Low power consumption with a linear current output sensitivity of 0.1-0.3 mA in air.
  • Fast response time (T90 ≤15 seconds) and excellent long-term stability (<2% drift per month).
  • Wide operating temperature range with minimal zero drift (≤0.1%Vol from -20°C to 40°C).
  • Compact Φ20 package ideal for integration into portable analyzers, industrial safety monitors, and ventilation control systems.

Out of stock

Description

The Winsen ME2-O2-Ф20 electrochemical oxygen sensor operates on a fuel cell principle, where oxygen undergoes an electrochemical oxidation reaction at the working electrode. The resulting current is directly proportional to the O2 concentration, adhering to Faraday’s law, enabling accurate gas concentration measurement through current sensing.

This module features a robust design with a recommended 100Ω load resistor, ensuring stable signal output across a normal atmospheric pressure range (±10%). Its high repeatability (<2% output value) and strong anti-interference characteristics make it suitable for demanding industrial and environmental monitoring applications where reliable data is critical.

Key Features

  • Electrochemical fuel cell sensor for accurate oxygen level detection.
  • Linear current output (0.1-0.3 mA in air) for easy interfacing with analog-to-digital converters.
  • Fast T90 response time of ≤15 seconds for real-time monitoring applications.
  • High stability with minimal monthly drift (<2%) and low zero temperature drift.
  • Wide storage and operating temperature range from -20°C to 50°C.
  • Compact Φ20 form factor for space-constrained integration.
  • Operates at normal atmospheric pressure with a ±10% tolerance.
  • Designed for low power consumption in continuous monitoring systems.

Applications

  • Industrial safety and confined space oxygen deficiency monitoring.
  • Environmental protection and air quality analysis stations.
  • Mine and tunnel ventilation control and safety systems.
  • Medical oxygen concentrator and respiratory equipment validation.
  • Agricultural storage and controlled atmosphere monitoring.

Technical Specifications

Detection GasO2 (Oxygen)
Measurement Range0 – 25% Vol
Sensitivity (in air)0.1 – 0.3 mA
Response Time (T90)≤ 15 seconds
Recommended Load Resistance100 Ω
Repeatability< 2% of output value
Stability (per month)< 2%
Zero Drift (-20°C to 40°C)≤ 0.1% Vol
Storage Temperature-20°C to 50°C
Storage Humidity0 – 99% RH
Pressure RangeNormal atmosphere ±10%

Frequently Asked Questions

What is the output signal of the ME2-O2 sensor and how do I interface it?

The sensor provides a linear current output proportional to oxygen concentration, typically between 0.1 mA and 0.3 mA in ambient air. To interface with a microcontroller, connect a recommended 100Ω load resistor across the output pins to convert the current signal into a measurable voltage, which can then be read by an ADC input.

What is the typical response time (T90) for this oxygen sensor?

The Winsen ME2-O2 sensor has a fast response time, reaching 90% of the final signal value within 15 seconds (T90 ≤15s) after a step change in oxygen concentration. This makes it suitable for applications requiring real-time monitoring and rapid detection of oxygen level changes.

What are the storage and operating conditions for this sensor module?

The sensor can be stored in temperatures from -20°C to 50°C at 0-99% RH. For optimal performance and minimal zero drift (≤0.1%Vol), operate within -20°C to 40°C. It is designed for use at normal atmospheric pressure with a tolerance of ±10%.

Package Includes

  • 1 x Winsen ME2-O2-Ф20 Oxygen Sensor Module

Additional Information

Weight 0.021 kg
Dimensions 6 × 3 × 3 cm