SKU: SENS-0808
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Winsen ZE12A-SO2 Electrochemical Gas Sensor Module - DAC & UART Output

₹17,759.00 (Inclusive of all taxes)
Out of Stock

The Winsen ZE12A-SO2 is an electrochemical gas sensor module designed for atmospheric monitoring, capable of detecting CO, H2S, NO2, SO2, and O3. It provides both digital UART and analog DAC outputs for easy integration with microcontrollers (Arduino, Raspberry Pi, ESP32) and data acquisition systems.

Features

  • Multi-gas detection for CO, H2S, NO2, SO2, and O3 pollutants.
  • Dual output: digital UART and analog DAC voltage signals.
  • High-resolution sensing with ≤10 ppb detection capability.
  • Integrated temperature sensor for automatic compensation.
  • Low power consumption and long operational lifespan.

Out of stock

Description

The Winsen ZE12A-SO2 module employs mature electrochemical sensing technology, offering high selectivity and stability for monitoring key atmospheric pollutants. Its design combines a robust electrochemical cell with sophisticated signal conditioning circuitry to deliver reliable, low-drift measurements suitable for continuous environmental monitoring.

Featuring simultaneous digital (UART) and analog (DAC) outputs, the module simplifies calibration and system integration, significantly reducing development time. The built-in temperature sensor ensures measurement accuracy across varying environmental conditions, making it a versatile solution for professional-grade air quality assessment.

Key Features

  • Electrochemical detection principle ensures high sensitivity and selectivity for target gases.
  • Dual-output interface (UART & DAC) provides flexible integration with microcontrollers and PLCs.
  • Onboard temperature compensation enhances long-term measurement stability and accuracy.
  • Low power consumption design supports deployment in portable and battery-operated systems.
  • Compact, ready-to-use module format accelerates prototyping and system development.
  • Robust construction ensures excellent anti-interference capability in electrically noisy environments.

Applications

  • Urban atmospheric environmental monitoring stations and networks.
  • Industrial plant perimeter and unorganized emission monitoring.
  • Portable gas detectors and emergency response equipment.
  • Environmental impact assessment and evaluation monitoring systems.
  • Integration into smart HVAC and air purification appliances.

Technical Specifications

Manufacturer Part NumberZE12A-SO2
Detection GasesCO, H2S, NO2, SO2, O3
Working PrincipleElectrochemical
Output SignalsDAC (Analog), UART (Digital)
Resolution≤ 10 ppb
Storage Temperature0°C to 20°C
Module Dimensions (LxWxH)12 cm x 8 cm x 4 cm
Shipping Weight0.03 kg

Frequently Asked Questions

What gases can the Winsen ZE12A-SO2 module detect?

The module is designed to detect five key atmospheric pollutants: Carbon Monoxide (CO), Hydrogen Sulfide (H2S), Nitrogen Dioxide (NO2), Sulfur Dioxide (SO2), and Ozone (O3). It utilizes specific electrochemical sensors for each gas, providing selective and stable measurements.

What are the output interfaces and how do I connect them?

The module provides two simultaneous output options: a digital UART (TTL-level serial) interface and an analog DAC voltage output. The UART output allows for direct communication with microcontrollers like Arduino or Raspberry Pi using a simple TX/RX connection. The analog output provides a voltage signal proportional to gas concentration, suitable for ADC inputs on PLCs or data loggers.

Does the module require calibration?

Yes, like all electrochemical sensors, periodic calibration is recommended to maintain accuracy. The module facilitates this process through its dual outputs. You can use zero gas and a standard concentration of the target gas to calibrate the analog output slope or send calibration commands via the UART interface to adjust the digital output values internally.

What is the purpose of the built-in temperature sensor?

The integrated temperature sensor provides automatic temperature compensation. Electrochemical sensor sensitivity can vary with ambient temperature. This onboard sensor allows the module's internal circuitry to adjust the output signal in real-time, ensuring stable and accurate readings across its specified operating temperature range.

Package Includes

  • 1 x Winsen ZE12A-SO2 Electrochemical Gas Sensor Module

Additional Information

Weight 0.03 kg
Dimensions 12 × 8 × 4 cm