How do I correctly wire the Winsen MC114 Catalytic Gas Sensor into my circuit?

[CharlieMarie]

Connecting the Winsen MC114 Catalytic Gas Sensor to your circuit requires careful attention to the pin configuration to ensure proper function and prevent damage. Here's a straightforward guide based on the Winsen MC114 documentation: First, identify the detection and compensation parts of the sensor. The pin from the detection part and the pin from the compensation part serve as the signal output connections. Next, connect the remaining pin of the detection part to the negative electrode of your power supply. Finally, connect the remaining pin of the compensation part to the positive electrode of your power supply. Note: The detection part is typically marked with a "■" symbol. For separate-type sensors, the part with the larger hole usually indicates the detection side. By following these steps, you will wire your Winsen MC114 Catalytic Gas Sensor correctly.