Colorimetry
A tool for measuring indoor pollution level, the formaldehyde concentration using colorimetry badge.
1. Let's compare the colored patches.
When taking a picture, line
up the edge with the
dotted line on your card.
Your images should be well
lit and look like this
example.
Learn more
Your data will not be saved or uploaded when you select an image.
2. Now hold and drag in the center of the left patch.
Your selection should look like this. Learn more
3. Now hold and drag in the center of the right patch.
Your selection should look like this. Learn more
4. Results
The RIGHT side is
% DARKER
than the LEFT side