The gas sensor works is by changes in its internal resistance, which is designed to be sensitive to changes in concentration of Volatile Organic Compound (VOC) gases. Although the sensor works great, it should not be used for any safety, medical or finished product usage. All gas sensors require calibration for precision output.
Note:
Manual measurement, with small error. Please check size in detail before purchase.
Real colors may slightly differ from the pictures, as it depends on specific monitor settings and light brightness.
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Package Includes: 1Pcs