Easy to use an accurate enough

These sensors are a fraction of the price, compared to US made sensors and yet they are as accurate and functional as the expensive ones. I bought several of these for an IOT project and they work as expected. Note, however, this sensor is the 5v version, it does have a voltage regulator, so you can use it with 3.3v volt. A dedicated 3.3v version of this exists (the board looks different. It has 2 holes instead of one) that cannot be used on 5v powered Arduinos.

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