SKU: SENS-0802
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Winsen MED-NH3 Electrochemical NH3 Gas Sensor – High Sensitivity Ammonia Detection

₹9,879.00 (Inclusive of all taxes)
Out of Stock

The Winsen MED-NH3 is an electrochemical gas sensor module designed for precise ammonia (NH3) concentration monitoring from 0-100ppm. It provides a linear current output proportional to gas concentration, suitable for integration into industrial safety systems, environmental monitoring stations, and HVAC control units.

Features

  • Electrochemical sensing principle for accurate NH3 detection from 0-100ppm (max 200ppm).
  • High sensitivity range of 80–160 µA/ppm with a resolution of 0.5ppm.
  • Fast response time (T90 ≤ 60 seconds) for real-time monitoring applications.
  • Stable performance with <10% repeatability and calibration-free operation.
  • Robust design for industrial and environmental protection fields.

Out of stock

Description

The Winsen MED-NH3 electrochemical gas sensor operates on the principle of target gas oxidation at a working electrode within an electrolytic cell. The resulting current is directly proportional to the ammonia concentration according to Faraday’s law, enabling precise ppm-level measurement. The module outputs an analog current signal corresponding to the detected gas level.

Engineered for durability, the sensor maintains stable performance across a wide operating temperature range and pressure variance. Its electrochemical design ensures high selectivity for ammonia, minimizing cross-sensitivity with other common gases, making it ideal for long-term deployment in demanding industrial and environmental monitoring scenarios.

Key Features

  • Electrochemical NH3 sensor with high-precision, linear current output.
  • Wide detection range of 0-100ppm (maximum 200ppm) with 0.5ppm resolution.
  • Fast T90 response time of ≤60 seconds for real-time gas concentration alerts.
  • Excellent repeatability (<10% output value) and long-term stability.
  • Pre-calibrated for simplified integration and reduced setup time.
  • Compact form factor for easy installation in confined spaces and control panels.
  • Designed for reliable operation in industrial and environmental protection applications.

Applications

  • Industrial ammonia leak detection in refrigeration, chemical processing, and fertilizer plants.
  • Environmental air quality monitoring stations for ambient NH3 level assessment.
  • HVAC and indoor air quality control systems in agricultural and livestock facilities.
  • Safety monitoring in wastewater treatment plants and landfill gas management.
  • Portable gas detectors and fixed-point alarm systems for occupational health.

Technical Specifications

Model NumberMED-NH3
Detection GasAmmonia (NH3)
Detection Range0-100ppm (Maximum 200ppm)
Resolution0.5ppm
Sensitivity80–160 µA/ppm
Repeatability<10% of output value
Response Time (T90)≤ 60 seconds
Pressure Range±10% of standard atmospheric pressure
Storage Temperature-20°C to 50°C

Frequently Asked Questions

What is the output signal of the Winsen MED-NH3 sensor?

The MED-NH3 provides an analog current output proportional to the ammonia concentration. Its sensitivity ranges from 80 to 160 microamperes per ppm (µA/ppm). This current signal can be conditioned using a transimpedance amplifier or read directly by a microcontroller with an appropriate ADC interface for system integration.

Does this NH3 sensor require calibration before use?

No, the Winsen MED-NH3 is a pre-calibrated, calibration-free electrochemical sensor. It is ready for use upon installation, providing stable and repeatable measurements within its specified accuracy without user calibration, simplifying deployment in fixed monitoring systems.

What is the response time for detecting an ammonia gas leak?

The sensor has a T90 response time of ≤ 60 seconds. This means it will reach 90% of its final output reading within one minute of exposure to a target gas concentration change, enabling timely alerts for industrial safety and environmental monitoring applications.

What are the typical operating conditions for this sensor?

The sensor is designed for standard atmospheric pressure conditions (±10% variance) and can be stored in temperatures from -20°C to 50°C. For optimal performance and longevity, it should be used within its specified gas concentration range and in environments free from condensing humidity or particulate contamination.

Package Includes

  • 1 x Winsen MED-NH3 Electrochemical NH3 Gas Sensor Module

Additional Information

Weight 0.009 kg
Dimensions 6 × 5 × 3 cm